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
79 − 10 = ______
68 + 20 = ______
57 − 10 = ______
85 + 20 = ______
33 + 20 = ______
5 × 10 = ______
39 + 20 = ______
2 × 10 = ______
54 − 10 = ______
42 + 20 = ______
48 − 10 = ______
8 × 10 = ______
9 × 10 = ______
64 − 10 = ______
86 + 20 = ______
25 + 10 = ______
81 + 10 = ______
29 + 20 = ______
26 + 10 = ______
21 − 10 = ______
