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
57 + 20 = ______
59 + 10 = ______
1 × 10 = ______
54 − 10 = ______
28 + 20 = ______
19 + 20 = ______
62 − 10 = ______
54 + 10 = ______
74 − 10 = ______
86 + 20 = ______
74 + 20 = ______
6 × 10 = ______
27 + 10 = ______
36 − 10 = ______
89 + 10 = ______
90 − 10 = ______
45 + 10 = ______
66 − 10 = ______
79 − 10 = ______
60 + 20 = ______
