Inverse Operations to Check Answers (Ex. 2)

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1. Question 1

   Multiple choice

   Check: is 5,236 + 3,891 = 9,127 correct?

2. Question 2

   Multiple choice

   Which inverse check shows 6,000 − 2,345 = 3,655?

3. Question 3

   Multiple choice

   A student says 8,724 − 4,185 = 4,539. Check using addition.

4. Question 4

   Sequence

   4,500 − 1,500 = 3,000 → check: 3,000 + ___ = 4,500.

5. Question 5

   True or false

   If 2,847 + 3,153 = 6,000, then 6,000 − 3,153 = 2,847.

More exercises in this module

• Column Addition with Regrouping (Ex. 1)

• Estimating with Rounding (Ex. 2)

• Four-Digit Subtraction (Ex. 3)

• Estimating with Rounding (Ex. 3)

• Four-Digit Addition (Ex. 1)

• Inverse Operations to Check Answers (Ex. 1)