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
86 + 10 = ______
27 + 20 = ______
35 − 10 = ______
8 × 10 = ______
46 − 10 = ______
79 + 10 = ______
67 − 10 = ______
51 + 20 = ______
39 + 20 = ______
57 + 20 = ______
89 + 20 = ______
82 − 10 = ______
66 + 20 = ______
63 + 20 = ______
86 − 10 = ______
72 + 10 = ______
84 + 10 = ______
50 + 10 = ______
28 + 10 = ______
45 − 10 = ______
