Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
45 + 10 = ______
67 + 20 = ______
65 + 20 = ______
37 + 20 = ______
75 + 10 = ______
38 − 10 = ______
63 + 20 = ______
15 + 10 = ______
74 + 20 = ______
28 + 10 = ______
42 − 10 = ______
63 − 10 = ______
9 × 10 = ______
39 − 10 = ______
1 × 10 = ______
25 − 10 = ______
34 − 10 = ______
24 + 20 = ______
6 × 10 = ______
7 × 10 = ______
