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
62 + 10 = ______
13 + 10 = ______
78 + 10 = ______
26 + 20 = ______
83 + 20 = ______
45 + 10 = ______
29 + 20 = ______
72 − 10 = ______
85 + 20 = ______
28 + 20 = ______
66 − 10 = ______
42 + 20 = ______
2 × 10 = ______
49 − 10 = ______
46 − 10 = ______
79 + 20 = ______
5 × 10 = ______
48 − 10 = ______
64 − 10 = ______
63 + 10 = ______
