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
14 + 20 = ______
65 + 20 = ______
30 + 20 = ______
79 + 20 = ______
1 × 10 = ______
34 − 10 = ______
84 + 20 = ______
75 − 10 = ______
61 − 10 = ______
5 × 10 = ______
49 + 10 = ______
51 − 10 = ______
64 + 20 = ______
83 + 10 = ______
57 + 10 = ______
42 + 10 = ______
9 × 10 = ______
47 − 10 = ______
54 + 10 = ______
17 + 10 = ______
