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
19 + 20 = ______
2 × 10 = ______
60 − 10 = ______
23 + 10 = ______
6 × 10 = ______
15 + 20 = ______
79 − 10 = ______
43 + 10 = ______
69 + 10 = ______
13 + 10 = ______
54 − 10 = ______
9 × 10 = ______
86 + 20 = ______
35 + 20 = ______
63 + 20 = ______
14 + 10 = ______
28 − 10 = ______
69 − 10 = ______
4 × 10 = ______
50 − 10 = ______
