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
42 + 10 = ______
80 − 10 = ______
75 + 20 = ______
67 − 10 = ______
5 × 10 = ______
91 − 10 = ______
78 + 10 = ______
8 × 10 = ______
40 + 10 = ______
56 − 10 = ______
33 + 20 = ______
23 + 10 = ______
92 − 10 = ______
11 + 20 = ______
31 + 10 = ______
75 + 10 = ______
59 + 10 = ______
85 + 20 = ______
44 + 10 = ______
68 − 10 = ______
