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
79 − 10 = ______
24 − 10 = ______
44 + 20 = ______
16 + 10 = ______
3 × 10 = ______
47 − 10 = ______
98 − 10 = ______
50 + 20 = ______
24 + 10 = ______
78 + 20 = ______
59 − 10 = ______
21 + 20 = ______
8 × 10 = ______
84 − 10 = ______
20 + 20 = ______
46 + 20 = ______
55 + 20 = ______
5 × 10 = ______
83 + 10 = ______
42 + 10 = ______
