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
61 + 20 = ______
84 − 10 = ______
42 + 20 = ______
82 + 10 = ______
47 − 10 = ______
88 + 10 = ______
37 + 20 = ______
9 × 10 = ______
66 + 10 = ______
61 − 10 = ______
87 + 20 = ______
85 + 20 = ______
35 + 10 = ______
39 − 10 = ______
24 + 20 = ______
65 − 10 = ______
52 + 20 = ______
42 − 10 = ______
60 + 20 = ______
62 + 20 = ______
