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
65 − 10 = ______
3 × 10 = ______
7 × 10 = ______
72 + 20 = ______
53 + 20 = ______
34 + 10 = ______
97 − 10 = ______
87 + 10 = ______
86 − 10 = ______
85 + 20 = ______
6 × 10 = ______
85 − 10 = ______
86 + 20 = ______
8 × 10 = ______
42 − 10 = ______
52 − 10 = ______
4 × 10 = ______
2 × 10 = ______
21 − 10 = ______
27 + 20 = ______
