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
53 − 10 = ______
3 × 10 = ______
6 × 10 = ______
72 − 10 = ______
2 × 10 = ______
81 + 20 = ______
25 − 10 = ______
7 × 10 = ______
15 + 10 = ______
62 − 10 = ______
27 − 10 = ______
22 − 10 = ______
1 × 10 = ______
33 + 20 = ______
52 + 20 = ______
67 + 20 = ______
99 − 10 = ______
51 + 20 = ______
80 − 10 = ______
47 − 10 = ______
