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
35 − 10 = ______
24 + 20 = ______
13 + 20 = ______
2 × 10 = ______
81 + 20 = ______
9 × 10 = ______
5 × 10 = ______
33 − 10 = ______
21 + 20 = ______
1 × 10 = ______
71 + 20 = ______
12 + 10 = ______
7 × 10 = ______
47 + 20 = ______
75 − 10 = ______
23 + 10 = ______
75 + 20 = ______
57 − 10 = ______
72 − 10 = ______
86 + 20 = ______
