Math · Age 8 · Addition & Subtraction
Mental Addition and Subtraction (Ex. 2)
Use mental strategies to add and subtract efficiently.
Module
Addition & Subtraction
Age
Age 8
Duration
8 min
Questions
5
What's in this exercise
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Question 1
Multiple choice
456 + 200 = ___.
Question 2
Multiple choice
75 - 38 = ___.
Question 3
Multiple choice
Which strategy helps add 99 to 45?
Question 4
Sequence
400, 450, 500, ___, 600.
Question 5
True or false
600 - 150 = 450.