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
27 + 20 = ______
1 × 10 = ______
67 + 20 = ______
28 + 10 = ______
50 − 10 = ______
34 + 10 = ______
89 − 10 = ______
7 × 10 = ______
82 − 10 = ______
3 × 10 = ______
68 + 10 = ______
9 × 10 = ______
5 × 10 = ______
44 + 10 = ______
87 − 10 = ______
77 + 20 = ______
71 + 10 = ______
29 − 10 = ______
23 + 10 = ______
19 + 10 = ______
