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
40 + 20 = ______
32 − 10 = ______
85 + 10 = ______
33 + 10 = ______
25 − 10 = ______
2 × 10 = ______
12 + 10 = ______
6 × 10 = ______
38 + 20 = ______
66 + 20 = ______
80 − 10 = ______
42 + 20 = ______
24 + 20 = ______
36 + 20 = ______
97 − 10 = ______
87 + 10 = ______
29 + 10 = ______
17 + 20 = ______
61 + 20 = ______
99 − 10 = ______
