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
70 − 10 = ______
4 × 10 = ______
21 − 10 = ______
73 + 20 = ______
64 − 10 = ______
67 − 10 = ______
62 + 10 = ______
33 − 10 = ______
65 − 10 = ______
58 + 10 = ______
46 − 10 = ______
25 + 20 = ______
29 + 20 = ______
78 − 10 = ______
50 + 10 = ______
24 + 10 = ______
23 + 20 = ______
88 − 10 = ______
61 − 10 = ______
31 + 20 = ______
