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
79 + 20 = ______
26 + 10 = ______
36 + 20 = ______
46 − 10 = ______
66 + 10 = ______
4 × 10 = ______
26 − 10 = ______
38 + 10 = ______
25 − 10 = ______
58 + 20 = ______
5 × 10 = ______
57 − 10 = ______
22 − 10 = ______
7 × 10 = ______
31 − 10 = ______
71 − 10 = ______
8 × 10 = ______
31 + 20 = ______
74 − 10 = ______
84 + 10 = ______
