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
72 + 20 = ______
36 + 10 = ______
21 + 20 = ______
65 + 10 = ______
87 + 20 = ______
7 × 10 = ______
70 − 10 = ______
73 − 10 = ______
71 − 10 = ______
31 − 10 = ______
28 − 10 = ______
9 × 10 = ______
6 × 10 = ______
4 × 10 = ______
68 − 10 = ______
80 − 10 = ______
43 + 20 = ______
40 + 10 = ______
82 + 20 = ______
3 × 10 = ______
