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
46 + 20 = ______
32 − 10 = ______
15 + 20 = ______
33 − 10 = ______
72 − 10 = ______
57 − 10 = ______
44 + 20 = ______
2 × 10 = ______
7 × 10 = ______
6 × 10 = ______
64 + 10 = ______
4 × 10 = ______
35 − 10 = ______
79 + 10 = ______
66 + 10 = ______
89 + 10 = ______
56 + 10 = ______
58 − 10 = ______
31 − 10 = ______
77 + 20 = ______
