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
45 − 10 = ______
49 + 20 = ______
17 + 20 = ______
63 + 20 = ______
84 + 10 = ______
40 + 20 = ______
51 + 10 = ______
37 − 10 = ______
9 × 10 = ______
27 + 10 = ______
7 × 10 = ______
36 − 10 = ______
1 × 10 = ______
76 + 20 = ______
42 + 10 = ______
11 + 20 = ______
27 − 10 = ______
48 + 20 = ______
62 + 10 = ______
23 + 20 = ______
