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
9 × 10 = ______
1 × 10 = ______
34 + 20 = ______
25 + 10 = ______
33 + 10 = ______
5 × 10 = ______
66 − 10 = ______
8 × 10 = ______
87 + 10 = ______
28 + 20 = ______
3 × 10 = ______
39 + 10 = ______
2 × 10 = ______
79 + 10 = ______
38 − 10 = ______
29 + 20 = ______
80 + 10 = ______
49 + 10 = ______
21 − 10 = ______
34 + 10 = ______
