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
4 × 10 = ______
39 + 20 = ______
59 − 10 = ______
66 + 10 = ______
49 − 10 = ______
55 − 10 = ______
73 + 20 = ______
93 − 10 = ______
78 − 10 = ______
5 × 10 = ______
57 − 10 = ______
76 − 10 = ______
49 + 20 = ______
2 × 10 = ______
8 × 10 = ______
76 + 20 = ______
53 + 10 = ______
41 + 20 = ______
86 + 20 = ______
32 − 10 = ______
