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
78 + 20 = ______
50 − 10 = ______
9 × 10 = ______
83 + 20 = ______
52 − 10 = ______
36 + 20 = ______
79 + 10 = ______
68 + 10 = ______
88 + 10 = ______
93 − 10 = ______
2 × 10 = ______
63 − 10 = ______
21 + 20 = ______
12 + 10 = ______
64 + 20 = ______
33 + 10 = ______
76 − 10 = ______
85 − 10 = ______
71 + 10 = ______
43 + 10 = ______
