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
71 − 10 = ______
24 + 20 = ______
62 − 10 = ______
66 + 10 = ______
27 − 10 = ______
53 + 20 = ______
88 + 20 = ______
2 × 10 = ______
59 − 10 = ______
3 × 10 = ______
47 + 10 = ______
1 × 10 = ______
50 + 20 = ______
96 − 10 = ______
37 − 10 = ______
15 + 20 = ______
62 + 20 = ______
26 + 20 = ______
39 − 10 = ______
13 + 20 = ______
