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
25 + 20 = ______
79 + 10 = ______
2 × 10 = ______
8 × 10 = ______
86 + 20 = ______
58 + 20 = ______
59 + 20 = ______
70 − 10 = ______
85 + 10 = ______
20 + 10 = ______
88 + 10 = ______
6 × 10 = ______
61 + 20 = ______
51 − 10 = ______
79 − 10 = ______
1 × 10 = ______
57 − 10 = ______
7 × 10 = ______
21 + 10 = ______
47 − 10 = ______
