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
99 − 10 = ______
58 + 10 = ______
79 + 10 = ______
45 + 10 = ______
7 × 10 = ______
20 + 20 = ______
6 × 10 = ______
34 − 10 = ______
5 × 10 = ______
21 + 10 = ______
3 × 10 = ______
2 × 10 = ______
40 + 20 = ______
13 + 10 = ______
9 × 10 = ______
19 + 10 = ______
27 − 10 = ______
91 − 10 = ______
8 × 10 = ______
31 − 10 = ______
