Mental Math Worksheet
Recommended for 1st Grade — 5th Grade
Mental Math Worksheet
Name: ____________________Date: ____________
Instructions: Using mental strategies like making ten, doubling, and compensation to compute quickly.
20 problems
49 + 20 = ______
4 × 10 = ______
72 − 10 = ______
5 × 10 = ______
31 + 10 = ______
22 − 10 = ______
67 + 20 = ______
13 + 10 = ______
69 + 10 = ______
66 − 10 = ______
73 − 10 = ______
61 + 10 = ______
28 + 10 = ______
6 × 10 = ______
8 × 10 = ______
85 + 10 = ______
21 + 20 = ______
47 − 10 = ______
66 + 20 = ______
71 − 10 = ______
