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
94 − 10 = ______
30 − 10 = ______
26 + 10 = ______
78 + 20 = ______
5 × 10 = ______
32 + 20 = ______
64 − 10 = ______
21 + 10 = ______
75 + 20 = ______
83 − 10 = ______
79 − 10 = ______
84 + 10 = ______
80 − 10 = ______
49 + 20 = ______
11 + 20 = ______
58 − 10 = ______
31 + 10 = ______
27 + 20 = ______
9 × 10 = ______
77 + 20 = ______
