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
70 + 10 = ______
77 − 10 = ______
78 + 20 = ______
71 − 10 = ______
45 + 20 = ______
39 + 10 = ______
1 × 10 = ______
37 − 10 = ______
58 + 10 = ______
13 + 10 = ______
77 + 20 = ______
98 − 10 = ______
29 − 10 = ______
59 − 10 = ______
67 − 10 = ______
76 + 20 = ______
59 + 20 = ______
58 + 20 = ______
40 + 20 = ______
44 + 10 = ______
