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 = ______
30 + 20 = ______
85 − 10 = ______
49 + 20 = ______
7 × 10 = ______
61 − 10 = ______
66 + 10 = ______
8 × 10 = ______
60 + 10 = ______
16 + 10 = ______
72 + 10 = ______
55 − 10 = ______
69 − 10 = ______
37 + 10 = ______
27 − 10 = ______
70 + 10 = ______
87 + 10 = ______
29 + 20 = ______
91 − 10 = ______
80 − 10 = ______
