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
69 + 20 = ______
36 + 10 = ______
22 + 20 = ______
60 + 20 = ______
3 × 10 = ______
44 + 10 = ______
9 × 10 = ______
21 + 20 = ______
42 + 10 = ______
33 + 20 = ______
71 − 10 = ______
57 − 10 = ______
28 − 10 = ______
91 − 10 = ______
78 + 10 = ______
37 + 20 = ______
47 − 10 = ______
47 + 10 = ______
97 − 10 = ______
61 + 20 = ______
