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
74 − 10 = ______
4 × 10 = ______
25 + 20 = ______
55 + 20 = ______
34 + 20 = ______
2 × 10 = ______
37 − 10 = ______
15 + 10 = ______
39 − 10 = ______
64 + 10 = ______
31 − 10 = ______
97 − 10 = ______
14 + 10 = ______
6 × 10 = ______
3 × 10 = ______
12 + 20 = ______
57 − 10 = ______
5 × 10 = ______
50 + 20 = ______
71 + 20 = ______
