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Method E - Counting-Up Method

CPD: A Compendium of Mathematical Methods (By Jo Morgan), topic 2.1.5

Counting-Up Method: 753 - 491

Step 1

Step 1

  • Write out the subtrahend under the minuend.
Step 2

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.
Step 3

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.
Step 4

Step 4

  • Next, add 50 to 700. This gives 750.
Step 5

Step 5

  • Next, add 3 to 750. This gives 753 as required.
Step 6

Step 6

  • Now sum the numbers you added to 491.
Checking the answer

Checking the answer

  • If 491 + 262 = 753 then 753 − 491 = 262.

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