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
22 − 10 = ______
8 × 10 = ______
65 + 20 = ______
89 + 10 = ______
21 + 10 = ______
45 + 10 = ______
59 + 20 = ______
5 × 10 = ______
11 + 10 = ______
64 − 10 = ______
76 − 10 = ______
25 + 10 = ______
20 + 20 = ______
3 × 10 = ______
71 + 20 = ______
13 + 20 = ______
21 + 20 = ______
79 + 10 = ______
9 × 10 = ______
81 − 10 = ______
