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
84 + 10 = ______
45 + 20 = ______
58 + 10 = ______
46 + 10 = ______
81 − 10 = ______
85 − 10 = ______
75 − 10 = ______
36 + 10 = ______
5 × 10 = ______
80 − 10 = ______
83 + 20 = ______
26 + 10 = ______
38 + 10 = ______
28 − 10 = ______
33 − 10 = ______
79 − 10 = ______
4 × 10 = ______
66 + 10 = ______
8 × 10 = ______
66 − 10 = ______
