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
8 × 10 = ______
12 + 10 = ______
63 + 10 = ______
80 − 10 = ______
41 − 10 = ______
36 − 10 = ______
42 + 20 = ______
71 + 10 = ______
79 − 10 = ______
6 × 10 = ______
73 + 20 = ______
2 × 10 = ______
71 − 10 = ______
57 + 10 = ______
46 + 20 = ______
77 + 20 = ______
73 − 10 = ______
48 − 10 = ______
72 + 10 = ______
4 × 10 = ______
