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
63 + 20 = ______
4 × 10 = ______
41 − 10 = ______
70 + 20 = ______
39 + 10 = ______
50 − 10 = ______
60 + 10 = ______
39 − 10 = ______
47 + 20 = ______
51 + 20 = ______
38 + 20 = ______
71 + 10 = ______
24 − 10 = ______
74 − 10 = ______
49 − 10 = ______
65 + 20 = ______
72 − 10 = ______
29 − 10 = ______
13 + 10 = ______
53 − 10 = ______
