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
77 − 10 = ______
85 + 20 = ______
2 × 10 = ______
49 + 20 = ______
78 + 20 = ______
87 + 10 = ______
73 + 20 = ______
37 − 10 = ______
30 + 10 = ______
93 − 10 = ______
15 + 20 = ______
44 − 10 = ______
63 + 10 = ______
50 − 10 = ______
80 − 10 = ______
17 + 10 = ______
7 × 10 = ______
70 + 20 = ______
47 + 10 = ______
62 − 10 = ______
