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
35 + 20 = ______
17 + 20 = ______
2 × 10 = ______
8 × 10 = ______
57 − 10 = ______
71 + 10 = ______
41 + 10 = ______
78 + 20 = ______
80 + 10 = ______
76 + 20 = ______
42 − 10 = ______
75 + 10 = ______
60 − 10 = ______
16 + 10 = ______
84 − 10 = ______
55 + 10 = ______
79 − 10 = ______
74 − 10 = ______
38 + 10 = ______
29 + 10 = ______
