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
39 − 10 = ______
11 + 20 = ______
70 + 10 = ______
34 + 20 = ______
7 × 10 = ______
77 + 10 = ______
9 × 10 = ______
74 + 10 = ______
61 + 20 = ______
14 + 20 = ______
98 − 10 = ______
24 + 10 = ______
68 − 10 = ______
37 − 10 = ______
40 + 20 = ______
88 − 10 = ______
17 + 10 = ______
31 − 10 = ______
43 − 10 = ______
23 − 10 = ______
