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 = ______
34 + 10 = ______
52 − 10 = ______
33 − 10 = ______
79 + 10 = ______
31 + 20 = ______
3 × 10 = ______
28 − 10 = ______
2 × 10 = ______
90 − 10 = ______
4 × 10 = ______
1 × 10 = ______
98 − 10 = ______
63 + 10 = ______
53 + 20 = ______
21 − 10 = ______
23 − 10 = ______
25 + 20 = ______
19 + 10 = ______
76 + 20 = ______
