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 + 10 = ______
29 + 10 = ______
89 + 20 = ______
40 − 10 = ______
64 − 10 = ______
73 − 10 = ______
77 + 20 = ______
49 − 10 = ______
63 + 20 = ______
1 × 10 = ______
5 × 10 = ______
59 + 10 = ______
26 + 20 = ______
81 − 10 = ______
21 − 10 = ______
3 × 10 = ______
64 + 10 = ______
8 × 10 = ______
38 − 10 = ______
25 + 10 = ______
