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
60 + 20 = ______
81 + 10 = ______
64 − 10 = ______
38 − 10 = ______
7 × 10 = ______
49 − 10 = ______
33 − 10 = ______
21 + 20 = ______
93 − 10 = ______
86 + 10 = ______
59 + 10 = ______
20 + 10 = ______
77 − 10 = ______
30 + 10 = ______
39 + 10 = ______
81 − 10 = ______
68 + 10 = ______
85 + 10 = ______
67 + 20 = ______
3 × 10 = ______
