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
99 − 10 = ______
46 + 20 = ______
2 × 10 = ______
91 − 10 = ______
9 × 10 = ______
4 × 10 = ______
3 × 10 = ______
58 + 20 = ______
37 + 20 = ______
73 + 10 = ______
45 − 10 = ______
15 + 20 = ______
6 × 10 = ______
49 + 20 = ______
40 − 10 = ______
7 × 10 = ______
78 + 10 = ______
65 + 10 = ______
26 + 20 = ______
36 + 20 = ______
