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
31 + 20 = ______
2 × 10 = ______
62 + 10 = ______
33 + 20 = ______
47 + 20 = ______
9 × 10 = ______
50 − 10 = ______
60 − 10 = ______
11 + 10 = ______
70 + 10 = ______
84 − 10 = ______
23 + 10 = ______
44 + 20 = ______
74 + 20 = ______
80 + 10 = ______
97 − 10 = ______
78 + 20 = ______
63 + 20 = ______
76 + 20 = ______
42 + 10 = ______
