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
60 + 10 = ______
64 − 10 = ______
68 + 10 = ______
60 − 10 = ______
81 − 10 = ______
8 × 10 = ______
54 − 10 = ______
84 + 10 = ______
85 − 10 = ______
17 + 10 = ______
7 × 10 = ______
87 + 20 = ______
3 × 10 = ______
5 × 10 = ______
25 + 20 = ______
81 + 10 = ______
63 + 10 = ______
86 + 10 = ______
78 − 10 = ______
89 + 20 = ______
