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
9 × 10 = ______
70 + 10 = ______
6 × 10 = ______
44 − 10 = ______
2 × 10 = ______
63 + 20 = ______
47 − 10 = ______
7 × 10 = ______
73 + 20 = ______
63 − 10 = ______
74 − 10 = ______
25 − 10 = ______
4 × 10 = ______
76 − 10 = ______
47 + 10 = ______
5 × 10 = ______
87 + 10 = ______
79 + 10 = ______
3 × 10 = ______
50 + 10 = ______
