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
21 − 10 = ______
64 + 10 = ______
3 × 10 = ______
74 + 20 = ______
50 − 10 = ______
16 + 10 = ______
77 + 20 = ______
35 + 20 = ______
5 × 10 = ______
39 − 10 = ______
79 + 10 = ______
7 × 10 = ______
34 − 10 = ______
9 × 10 = ______
31 − 10 = ______
76 − 10 = ______
75 + 20 = ______
72 + 20 = ______
63 + 20 = ______
69 + 20 = ______
