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
66 + 20 = ______
30 + 10 = ______
83 + 20 = ______
41 + 20 = ______
36 + 20 = ______
17 + 10 = ______
73 + 20 = ______
66 − 10 = ______
49 + 20 = ______
74 + 20 = ______
63 − 10 = ______
37 + 10 = ______
5 × 10 = ______
38 − 10 = ______
71 − 10 = ______
72 + 10 = ______
95 − 10 = ______
8 × 10 = ______
37 − 10 = ______
91 − 10 = ______
