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
83 + 20 = ______
97 − 10 = ______
28 − 10 = ______
88 + 10 = ______
4 × 10 = ______
42 + 10 = ______
79 + 20 = ______
2 × 10 = ______
47 + 20 = ______
89 + 10 = ______
5 × 10 = ______
40 − 10 = ______
27 − 10 = ______
12 + 20 = ______
25 + 20 = ______
59 + 10 = ______
25 − 10 = ______
74 + 20 = ______
67 − 10 = ______
29 − 10 = ______
