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
9 × 10 = ______
22 + 10 = ______
70 + 20 = ______
68 + 20 = ______
81 + 20 = ______
68 − 10 = ______
4 × 10 = ______
51 + 20 = ______
36 + 10 = ______
5 × 10 = ______
26 − 10 = ______
62 − 10 = ______
82 + 20 = ______
35 + 10 = ______
7 × 10 = ______
2 × 10 = ______
75 + 20 = ______
43 − 10 = ______
1 × 10 = ______
66 + 20 = ______
