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
75 + 20 = ______
17 + 20 = ______
6 × 10 = ______
57 − 10 = ______
7 × 10 = ______
38 + 10 = ______
33 − 10 = ______
38 + 20 = ______
40 + 20 = ______
48 + 20 = ______
64 − 10 = ______
75 − 10 = ______
55 + 20 = ______
47 + 10 = ______
69 − 10 = ______
22 + 10 = ______
2 × 10 = ______
31 − 10 = ______
85 − 10 = ______
34 + 20 = ______
