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
64 − 10 = ______
72 − 10 = ______
60 − 10 = ______
54 + 10 = ______
5 × 10 = ______
8 × 10 = ______
28 − 10 = ______
2 × 10 = ______
34 + 10 = ______
87 + 10 = ______
30 + 20 = ______
36 + 10 = ______
97 − 10 = ______
7 × 10 = ______
18 + 20 = ______
4 × 10 = ______
66 + 10 = ______
89 − 10 = ______
68 + 20 = ______
30 + 10 = ______
