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
4 × 10 = ______
77 − 10 = ______
21 + 10 = ______
29 − 10 = ______
1 × 10 = ______
40 + 20 = ______
36 + 20 = ______
13 + 10 = ______
62 + 20 = ______
8 × 10 = ______
6 × 10 = ______
39 + 10 = ______
51 + 20 = ______
25 + 10 = ______
5 × 10 = ______
75 + 20 = ______
2 × 10 = ______
66 + 10 = ______
35 + 10 = ______
73 + 20 = ______
