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
9 × 10 = ______
74 − 10 = ______
53 + 20 = ______
7 × 10 = ______
21 + 20 = ______
31 − 10 = ______
31 + 20 = ______
96 − 10 = ______
8 × 10 = ______
1 × 10 = ______
63 − 10 = ______
65 + 20 = ______
47 + 10 = ______
4 × 10 = ______
69 + 20 = ______
78 + 10 = ______
91 − 10 = ______
6 × 10 = ______
73 + 10 = ______
11 + 10 = ______
