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
9 × 10 = ______
83 + 20 = ______
81 + 20 = ______
57 − 10 = ______
20 + 10 = ______
39 + 10 = ______
81 − 10 = ______
6 × 10 = ______
86 − 10 = ______
76 − 10 = ______
3 × 10 = ______
33 + 10 = ______
39 − 10 = ______
73 + 20 = ______
34 + 10 = ______
49 + 20 = ______
21 + 20 = ______
72 + 10 = ______
65 + 10 = ______
61 + 10 = ______
