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
77 − 10 = ______
55 − 10 = ______
58 + 10 = ______
82 − 10 = ______
60 + 10 = ______
21 + 20 = ______
85 + 20 = ______
29 + 10 = ______
33 + 10 = ______
6 × 10 = ______
54 − 10 = ______
89 + 10 = ______
17 + 20 = ______
9 × 10 = ______
62 + 10 = ______
52 + 10 = ______
39 + 20 = ______
89 + 20 = ______
41 + 20 = ______
35 − 10 = ______
