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
34 − 10 = ______
46 + 10 = ______
70 + 20 = ______
49 + 10 = ______
18 + 20 = ______
31 + 20 = ______
39 − 10 = ______
3 × 10 = ______
72 + 20 = ______
61 + 10 = ______
34 + 20 = ______
8 × 10 = ______
9 × 10 = ______
23 + 10 = ______
64 − 10 = ______
79 + 20 = ______
78 − 10 = ______
33 − 10 = ______
80 + 20 = ______
85 + 20 = ______
