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 + 10 = ______
75 + 10 = ______
5 × 10 = ______
4 × 10 = ______
39 − 10 = ______
71 − 10 = ______
91 − 10 = ______
72 + 20 = ______
9 × 10 = ______
87 − 10 = ______
66 + 20 = ______
93 − 10 = ______
32 − 10 = ______
79 − 10 = ______
36 + 20 = ______
62 − 10 = ______
24 + 20 = ______
1 × 10 = ______
89 + 20 = ______
20 + 20 = ______
