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
9 × 10 = ______
15 + 20 = ______
33 + 20 = ______
16 + 10 = ______
47 + 20 = ______
38 + 10 = ______
4 × 10 = ______
71 + 20 = ______
39 + 10 = ______
2 × 10 = ______
27 − 10 = ______
35 + 10 = ______
23 − 10 = ______
99 − 10 = ______
25 − 10 = ______
92 − 10 = ______
84 − 10 = ______
21 + 10 = ______
54 + 20 = ______
20 + 10 = ______
