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
33 + 10 = ______
68 + 20 = ______
15 + 10 = ______
66 + 20 = ______
35 + 10 = ______
76 + 10 = ______
79 + 20 = ______
53 − 10 = ______
22 − 10 = ______
90 − 10 = ______
27 + 10 = ______
71 − 10 = ______
43 + 20 = ______
72 + 20 = ______
28 + 10 = ______
30 + 20 = ______
9 × 10 = ______
91 − 10 = ______
88 + 10 = ______
18 + 10 = ______
