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
2 × 10 = ______
24 + 20 = ______
55 − 10 = ______
37 − 10 = ______
42 + 20 = ______
45 + 10 = ______
21 + 20 = ______
69 + 20 = ______
46 + 20 = ______
61 − 10 = ______
3 × 10 = ______
4 × 10 = ______
85 − 10 = ______
70 + 20 = ______
30 + 10 = ______
64 − 10 = ______
51 + 10 = ______
57 − 10 = ______
42 − 10 = ______
18 + 20 = ______
