Source: https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-2-4-rounding-to-check-your-answer [Revision notes](https://senecalearning.com/en-gb/revision-notes.md) › [Primary](https://senecalearning.com/en-gb/revision-notes/primary.md) › [Maths](https://senecalearning.com/en-gb/revision-notes/primary/maths.md) › [Maths: Year 5 & 6 National Curriculum](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum.md) › Rounding to Check Your Answer # Rounding to Check Your Answer Maths: Year 5 & 6 National Curriculum, topic 1.2.4 ## Using Rounding to the Nearest 1,000 to Check Your Answers You can use rounding to check if our answers are correct. You can use rounding to check your answers from written methods or mental maths. ### Example ![Example](https://image-v2.cdn.app.senecalearning.com/2019-08/2ebe1107-3e56-4141-bb5c-d037594456ce/tachina-lee--wjk_SSqCE4-unsplash.jpg) - I have worked out that 3,427 + 2,372 = 6,699 but I'm not very confident in my answer. - I can use rounding to check if my answer is roughly correct. ### Round both numbers ![Round both numbers](https://image-v2.cdn.app.senecalearning.com/2019-08/0748c919-d934-40ee-8c28-a2744539813c/night-1846734_1920.jpg) - I can round both numbers to the nearest 10/100/1,000 to check. - 3,427 to the nearest thousand is 3,000. - 2,372 to the nearest thousand is 2,000. ### Adding the rounded numbers ![Adding the rounded numbers](https://image-v2.cdn.app.senecalearning.com/2018-08/c7c2a77c-8f38-450a-a083-bbfd3f6801d4/plus-sign-add-.png) - I can add the rounded numbers together to make an estimate for the actual answer. - 3,000 + 2,000 = 5,000 - As I am rounding to the nearest 1,000, my ‘real’ answer needs to be up to 1,000 away from my estimate if it is correct. ### Is it less than 1,000 away? ![Is it less than 1,000 away?](https://image-v2.cdn.app.senecalearning.com/2019-07/139eb4f2-a6a1-4a8b-a315-91cbedf553e3/confused-2681507_1920.jpg) - I originally said that 3,427 + 2,372 = 6,699. - 6,699 is more than 1,000 away from our estimated answer (5,000). - This means that 6,699 is NOT the correct answer and I should try again. ## Using Rounding to the Nearest 100 to Check Your Answers You can use rounding to check if our answers are correct. You can use rounding to check your answers from written methods or mental maths. ### Example ![Example](https://image-v2.cdn.app.senecalearning.com/2019-08/2ebe1107-3e56-4141-bb5c-d037594456ce/tachina-lee--wjk_SSqCE4-unsplash.jpg) - My friend tried to work out the answer to 3,427 + 2,372 to help me. - My friend thinks 3,427 + 2,372 = 5,799. - We need to use rounding to check the answer. ### Round both numbers ![Round both numbers](https://image-v2.cdn.app.senecalearning.com/2019-08/0748c919-d934-40ee-8c28-a2744539813c/night-1846734_1920.jpg) - To get a more accurate estimate, I will round to the nearest 100 this time to work out my estimate. - 3,427 to the nearest hundred is 3,400. - 2,372 to the nearest hundred it would be 2,400. ### Adding the rounded numbers ![Adding the rounded numbers](https://image-v2.cdn.app.senecalearning.com/2018-08/c7c2a77c-8f38-450a-a083-bbfd3f6801d4/plus-sign-add-.png) - I can add the rounded numbers together to make an estimate for the actual answer. - 3,400 + 2,400 = 5,800 - As I am rounding to the nearest 100, my friend's ‘real’ answer needs to be up to 100 away from my estimate if it is correct. ### Is it less than 100 away? ![Is it less than 100 away?](https://image-v2.cdn.app.senecalearning.com/2019-07/139eb4f2-a6a1-4a8b-a315-91cbedf553e3/confused-2681507_1920.jpg) - My friend originally said that 3,427 + 2,372 = 5,799. - 5,799 is less than 100 away from our estimated answer (5,800). - This means that 5,799 could be the correct answer. - This doesn't mean it is definitely correct though. ## Test yourself on Rounding to Check Your Answer - Which of these would be a reasonable estimate for 2,947 + 6,284? - Which of these would be a reasonable estimate for 3,832 + 1,295? - Which of these would be a reasonable estimate for 1,145 + 2,814? - Which of these calculations will give the most accurate estimate for 3,872 + 7,230? - Which of these calculations will give the most accurate estimate for 1,512 + 3,327? [Practise this topic for free](https://app.senecalearning.com/classroom/course/cc410aae-4be5-4c7a-9492-ee552574ade2/section/0cd8cc0d-fb2d-4613-a37a-e845bcc241ae/session) - Previous topic: [1.2.3 Mental Addition & Subtraction](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-2-3-mental-addition-and-subtraction.md) - Next topic: [1.3.1 Multiples](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-1-multiples.md) ## Maths: Year 5 & 6 National Curriculum contents ### 1 Year 5 - Number - 1.1 Number & Place Value - [1.1.1 The Value of Digits to Millions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-1-1-the-value-of-digits-to-millions.md) - [1.1.2 Smallest & Biggest Numbers to Millions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-1-2-smallest-and-biggest-numbers-to-millions.md) - [1.1.3 Ordering Numbers to Millions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-1-3-ordering-numbers-to-millions.md) - [1.1.4 Counting in Powers of 10](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-1-4-counting-in-powers-of-10.md) - [1.1.5 Counting in Negative Numbers](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-1-5-counting-in-negative-numbers.md) - [1.1.6 Rounding Numbers up to 1,000,000](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-1-6-rounding-numbers-up-to-1000000.md) - [1.1.7 Reading Roman Numerals](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-1-7-reading-roman-numerals.md) - 1.2 Addition & Subtraction - [1.2.1 Written Methods for Adding Large Numbers](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-2-1-written-methods-for-adding-large-numbers.md) - [1.2.2 Written Methods for Subtracting Large Numbers](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-2-2-written-methods-for-subtracting-large-numbers.md) - [1.2.3 Mental Addition & Subtraction](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-2-3-mental-addition-and-subtraction.md) - [1.2.4 Rounding to Check Your Answer](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-2-4-rounding-to-check-your-answer.md) - 1.3 Multiplication & Division - [1.3.1 Multiples](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-1-multiples.md) - [1.3.2 Factors](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-2-factors.md) - [1.3.3 Prime Numbers](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-3-prime-numbers.md) - [1.3.4 Prime Factors](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-4-prime-factors.md) - [1.3.5 Composite Numbers](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-5-composite-numbers.md) - [1.3.6 Factor Trees](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-6-factor-trees.md) - [1.3.7 Multiplication by a 1 Digit Number](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-7-multiplication-by-a-1-digit-number.md) - [1.3.8 Long Multiplication Using Column Method](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-8-long-multiplication-using-column-method.md) - [1.3.9 Times Tables](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-9-times-tables.md) - [1.3.10 Division](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-10-division.md) - [1.3.11 Multiplying & Dividing by 10, 100 & 1,000](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-11-multiplying-and-dividing-by-10-100-and-1000.md) - [1.3.12 Square & Cube Numbers](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-3-12-square-and-cube-numbers.md) - 1.4 Fractions & Decimals - [1.4.1 Compare & Order Fractions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-4-1-compare-and-order-fractions.md) - [1.4.2 Identifying Equivalent Fractions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-4-2-identifying-equivalent-fractions.md) - [1.4.3 Add & Subtract Fractions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-4-3-add-and-subtract-fractions.md) - [1.4.4 Mixed Numbers & Improper Fractions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-4-4-mixed-numbers-and-improper-fractions.md) - [1.4.5 Multiplying Fractions by Whole Numbers](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-4-5-multiplying-fractions-by-whole-numbers.md) - [1.4.6 Converting Between Decimals & Fractions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-4-6-converting-between-decimals-and-fractions.md) - [1.4.7 Rounding Decimals](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-4-7-rounding-decimals.md) - [1.4.8 Ordering Decimals](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/1-4-8-ordering-decimals.md) ### 2 Year 5 - Measurement - 2.1 Measures - [2.1.1 Metric Measurements](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/2-1-1-metric-measurements.md) - [2.1.2 Imperial Measurements](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/2-1-2-imperial-measurements.md) - 2.2 Perimeter & Area - [2.2.1 Perimeter](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/2-2-1-perimeter.md) - [2.2.2 Area](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/2-2-2-area.md) - 2.3 Time - [2.3.1 Units of Time](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/2-3-1-units-of-time.md) ### 3 Year 5 - Geometry - 3.1 Properties of 3D Shapes - [3.1.1 Types of 3D Shapes](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/3-1-1-types-of-3d-shapes.md) - [3.1.2 Faces, Edges & Vertices](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/3-1-2-faces-edges-and-vertices.md) - 3.2 Properties of 2D Shapes - [3.2.1 Polygons](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/3-2-1-polygons.md) - 3.3 Angles - [3.3.1 Angles in Degrees](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/3-3-1-angles-in-degrees.md) - [3.3.2 Types of Angle](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/3-3-2-types-of-angle.md) - [3.3.3 Finding Missing Angles](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/3-3-3-finding-missing-angles.md) - 3.4 Position & Direction - [3.4.1 Reflection & Translation](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/3-4-1-reflection-and-translation.md) ### 4 Year 5 - Statistics - 4.1 Graphs - [4.1.1 Line Graphs](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/4-1-1-line-graphs.md) - [4.1.2 Tables](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/4-1-2-tables.md) - [4.1.3 Timetables](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/4-1-3-timetables.md) ### 5 Year 6 - Number - 5.1 Number & Place Value - [5.1.1 The Value of Digits to Ten Millions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-1-1-the-value-of-digits-to-ten-millions.md) - [5.1.2 Ordering Numbers to Millions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-1-2-ordering-numbers-to-millions.md) - [5.1.3 Rounding](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-1-3-rounding.md) - [5.1.4 Negative Numbers](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-1-4-negative-numbers.md) - 5.2 Multiplication & Division - [5.2.1 Multiplication by a 2 Digit Number](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-2-1-multiplication-by-a-2-digit-number.md) - [5.2.2 Division](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-2-2-division.md) - [5.2.3 Multiples](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-2-3-multiples.md) - [5.2.4 Factors](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-2-4-factors.md) - [5.2.5 Primes](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-2-5-primes.md) - 5.3 Mental Maths - [5.3.1 Multiplying & Dividing by 10, 100 & 1,000](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-3-1-multiplying-and-dividing-by-10-100-and-1000.md) - [5.3.2 Addition & Subtraction](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-3-2-addition-and-subtraction.md) - [5.3.3 Adding & Subtracting 10, 100 & 1,000](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-3-3-adding-and-subtracting-10-100-and-1000.md) - [5.3.4 Multiplication & Division](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-3-4-multiplication-and-division.md) - 5.4 Order of Operations - [5.4.1 BIDMAS](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-4-1-bidmas.md) - 5.5 Problem Solving - [5.5.1 Addition & Subtraction Multi-step Problems](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-5-1-addition-and-subtraction-multi-step-problems.md) - [5.5.2 Problem Solving with Proportion](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-5-2-problem-solving-with-proportion.md) - 5.6 Fractions & Decimals - [5.6.1 Simplifying Fractions Using Equivalents](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-6-1-simplifying-fractions-using-equivalents.md) - [5.6.2 Ordering Different Types of Fraction](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-6-2-ordering-different-types-of-fraction.md) - [5.6.3 Adding & Subtracting Fractions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-6-3-adding-and-subtracting-fractions.md) - [5.6.4 Adding & Subtracting Mixed Numbers](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-6-4-adding-and-subtracting-mixed-numbers.md) - [5.6.5 Multiplying Fractions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-6-5-multiplying-fractions.md) - [5.6.6 Dividing Fractions by Whole Numbers](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-6-6-dividing-fractions-by-whole-numbers.md) - [5.6.7 Converting Between Decimals & Fractions](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-6-7-converting-between-decimals-and-fractions.md) - [5.6.8 Dividing Decimals](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/5-6-8-dividing-decimals.md) ### 6 Year 6 - Ratio & Proportion - 6.1 Ratio - [6.1.1 Using Ratios](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/6-1-1-using-ratios.md) - [6.1.2 Simplifying Ratios](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/6-1-2-simplifying-ratios.md) - 6.2 Percentages - [6.2.1 Calculating Percentages](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/6-2-1-calculating-percentages.md) - 6.3 Scale - [6.3.1 Scale of 2D Shapes](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/6-3-1-scale-of-2d-shapes.md) ### 7 Year 6 - Algebra - 7.1 Sequences - [7.1.1 Describing Sequences](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/7-1-1-describing-sequences.md) - [7.1.2 Finding Gaps in Sequences](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/7-1-2-finding-gaps-in-sequences.md) - 7.2 Missing Number Problems - [7.2.1 Missing Number Problems](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/7-2-1-missing-number-problems.md) - 7.3 Equations - [7.3.1 Balancing Equations](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/7-3-1-balancing-equations.md) - [7.3.2 Combining Two Variables](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/7-3-2-combining-two-variables.md) ### 8 Year 6 - Measurement - 8.1 Problem Solving - [8.1.1 Problem Solving with Measures](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-1-1-problem-solving-with-measures.md) - 8.2 Unit Conversion - [8.2.1 Conversion Between Miles & Kilometres](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-2-1-conversion-between-miles-and-kilometres.md) - 8.3 Perimeter, Area & Volume - [8.3.1 Area](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-3-1-area.md) - [8.3.2 Volume](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-3-2-volume.md) - [8.3.3 Nets](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-3-3-nets.md) - [8.3.4 Faces, Edges & Vertices](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-3-4-faces-edges-and-vertices.md) - 8.4 Angles - [8.4.1 Types of Angle](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-4-1-types-of-angle.md) - [8.4.2 Finding Missing Angles](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-4-2-finding-missing-angles.md) - [8.4.3 Finding Missing Angles in Triangles](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-4-3-finding-missing-angles-in-triangles.md) - [8.4.4 Vertically Opposite Angles](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-4-4-vertically-opposite-angles.md) - 8.5 Circles - [8.5.1 Parts of a Circle](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-5-1-parts-of-a-circle.md) - 8.6 Coordinate Grids - [8.6.1 Positions on Coordinate Grids](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-6-1-positions-on-coordinate-grids.md) - [8.6.2 Reflection & Translation](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/8-6-2-reflection-and-translation.md) ### 9 Year 6 - Statistics - 9.1 Displaying Data - [9.1.1 Pie Charts](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/9-1-1-pie-charts.md) - [9.1.2 Line Graphs](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/9-1-2-line-graphs.md) - 9.2 Averages - [9.2.1 Mean](https://senecalearning.com/en-gb/revision-notes/primary/maths/maths-year-5-and-6-national-curriculum/9-2-1-mean.md)