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
35 + 20 = ______
50 − 10 = ______
39 + 20 = ______
2 × 10 = ______
29 − 10 = ______
3 × 10 = ______
37 + 20 = ______
41 + 20 = ______
58 + 10 = ______
63 + 10 = ______
66 − 10 = ______
53 + 20 = ______
4 × 10 = ______
54 + 10 = ______
5 × 10 = ______
95 − 10 = ______
6 × 10 = ______
47 − 10 = ______
72 − 10 = ______
78 + 10 = ______
