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
2 × 10 = ______
60 + 20 = ______
71 − 10 = ______
9 × 10 = ______
88 − 10 = ______
5 × 10 = ______
44 + 10 = ______
72 + 20 = ______
99 − 10 = ______
41 + 20 = ______
52 − 10 = ______
66 − 10 = ______
30 + 20 = ______
39 + 10 = ______
53 + 20 = ______
53 − 10 = ______
3 × 10 = ______
26 + 10 = ______
6 × 10 = ______
97 − 10 = ______
