Mental Addition and Subtraction (Ex. 1)

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1. Question 1

   Multiple choice

   47 + 35 = ___.

2. Question 2

   Multiple choice

   300 + 250 = ___.

3. Question 3

   Multiple choice

   568 - 34 = ___.

4. Question 4

   Sequence

   50, 100, 150, ___, 250.

5. Question 5

   True or false

   250 + 150 = 400.

More exercises in this module

• Inverse Operations: Check Your Answers (Ex. 2)

• Estimating Sums and Differences (Ex. 2)

• Word Problems: Addition and Subtraction (Ex. 3)

• Inverse Operations: Check Your Answers (Ex. 3)

• Word Problems: Addition and Subtraction (Ex. 2)

• Estimating Sums and Differences (Ex. 1)