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
39 + 10 = ______
67 + 20 = ______
61 − 10 = ______
93 − 10 = ______
54 + 10 = ______
61 + 20 = ______
1 × 10 = ______
9 × 10 = ______
74 + 20 = ______
46 + 20 = ______
86 − 10 = ______
76 − 10 = ______
48 − 10 = ______
40 + 10 = ______
7 × 10 = ______
57 + 20 = ______
85 + 10 = ______
2 × 10 = ______
33 − 10 = ______
28 − 10 = ______
