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
89 + 10 = ______
8 × 10 = ______
85 − 10 = ______
20 + 10 = ______
67 − 10 = ______
65 − 10 = ______
19 + 20 = ______
12 + 20 = ______
71 + 10 = ______
36 − 10 = ______
30 + 10 = ______
80 + 20 = ______
2 × 10 = ______
67 + 10 = ______
88 − 10 = ______
23 + 10 = ______
3 × 10 = ______
94 − 10 = ______
72 + 10 = ______
26 + 20 = ______
