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
65 − 10 = ______
22 − 10 = ______
2 × 10 = ______
47 − 10 = ______
55 − 10 = ______
15 + 10 = ______
86 + 10 = ______
49 − 10 = ______
11 + 10 = ______
54 + 10 = ______
91 − 10 = ______
64 + 10 = ______
22 + 10 = ______
57 − 10 = ______
5 × 10 = ______
29 + 20 = ______
77 + 20 = ______
78 + 10 = ______
1 × 10 = ______
12 + 10 = ______
