2.1.5
Method E - Counting-Up Method
Complete the interactive activities in the Seneca app to work towards your CPD certificate.
Counting-Up Method: 753 - 491
Step 1
- Write out the subtrahend under the minuend.
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Step 2
- Work out what we need to add to 491 to get 753. Do this in stages.
- First we can add 9 to 491. This gives 500.
,h_400,q_80,w_640.png)
Step 3
- At each stage, write what you’ve added and keep a running total so you know when you’ve reached 753.
- Next, we add 200 to 500. This gives 700.
,h_400,q_80,w_640.png)
Step 4
- Next, add 50 to 700. This gives 750.
,h_400,q_80,w_640.png)
Step 5
- Next, add 3 to 750. This gives 753 as required.
,h_400,q_80,w_640.png)
Step 6
- Now sum the numbers you added to 491.
Checking the answer
- If 491 + 262 = 753 then 753 − 491 = 262.
1Course Overview
1.1Course Structure & Commonly Asked Questions
2Subtraction: KS2/3
2.1Subtraction Methods
2.1.1Method A - Decomposition Method2.1.2Method B - Equal Addition Method2.1.3Method C - Expanded Form Method2.1.4Method D - Partitioning Method2.1.5Method E - Counting-Up Method2.1.6Method F - Constant Difference Method2.1.7Method G - Partial Differences Method2.1.8Method H - Complementary Method2.1.9Method I - Nines Complement Method
3Expanding Double Brackets: KS3/4
Jump to other topics
1Course Overview
1.1Course Structure & Commonly Asked Questions
2Subtraction: KS2/3
2.1Subtraction Methods
2.1.1Method A - Decomposition Method2.1.2Method B - Equal Addition Method2.1.3Method C - Expanded Form Method2.1.4Method D - Partitioning Method2.1.5Method E - Counting-Up Method2.1.6Method F - Constant Difference Method2.1.7Method G - Partial Differences Method2.1.8Method H - Complementary Method2.1.9Method I - Nines Complement Method
3Expanding Double Brackets: KS3/4
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