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
66 + 10 = ______
47 − 10 = ______
84 + 10 = ______
1 × 10 = ______
77 + 10 = ______
73 + 10 = ______
27 + 20 = ______
88 + 10 = ______
2 × 10 = ______
13 + 20 = ______
97 − 10 = ______
48 − 10 = ______
36 − 10 = ______
35 − 10 = ______
24 + 20 = ______
81 + 10 = ______
5 × 10 = ______
25 + 10 = ______
71 − 10 = ______
91 − 10 = ______
