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
55 + 20 = ______
77 + 20 = ______
39 − 10 = ______
50 + 20 = ______
85 − 10 = ______
5 × 10 = ______
1 × 10 = ______
28 + 20 = ______
2 × 10 = ______
65 − 10 = ______
78 + 10 = ______
6 × 10 = ______
3 × 10 = ______
20 + 10 = ______
52 + 20 = ______
62 − 10 = ______
75 + 20 = ______
67 + 20 = ______
38 − 10 = ______
45 + 20 = ______
