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
98 − 10 = ______
97 − 10 = ______
58 + 10 = ______
74 + 20 = ______
99 − 10 = ______
9 × 10 = ______
6 × 10 = ______
89 + 10 = ______
11 + 20 = ______
36 − 10 = ______
57 − 10 = ______
27 + 20 = ______
38 + 10 = ______
41 + 10 = ______
90 − 10 = ______
29 + 20 = ______
21 − 10 = ______
3 × 10 = ______
71 − 10 = ______
2 × 10 = ______
