AI generatedNumberKS3 / GCSE

Inverse operations to check a calculation

Inverse operations to check a calculation.

  • Addition and subtraction undo each other. Multiplication and division undo each other.
  • Work backwards from the answer to recover the starting value.

Example 1

Check this calculation using the inverse operation.

Division undoes multiplication. Recovering the first factor confirms the product.
The calculation is correct.

Example 2

Check this calculation using the inverse operation.

Division undoes multiplication. Recovering the first factor confirms the product.
The calculation is correct.

Your turn

Question 1

Check this calculation using the inverse operation.

Check answer
Division undoes multiplication. Recovering the first factor confirms the product.
The calculation is correct.
Question 2

Check this calculation using the inverse operation.

Check answer
Division undoes multiplication. Recovering the first factor confirms the product.
The calculation is correct.
Question 3

Check this calculation using the inverse operation.

Check answer
Division undoes multiplication. Recovering the first factor confirms the product.
The calculation is correct.
Question 4

Check this calculation using the inverse operation.

Check answer
Division undoes multiplication. Recovering the first factor confirms the product.
The calculation is correct.
Question 5

Check this calculation using the inverse operation.

Check answer
Division undoes multiplication. Recovering the first factor confirms the product.
The calculation is correct.
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