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
6 × 10 = ______
46 + 20 = ______
7 × 10 = ______
48 − 10 = ______
60 − 10 = ______
9 × 10 = ______
86 + 10 = ______
72 − 10 = ______
39 + 10 = ______
4 × 10 = ______
44 + 20 = ______
5 × 10 = ______
76 − 10 = ______
77 + 20 = ______
70 + 10 = ______
32 + 20 = ______
63 + 20 = ______
53 + 20 = ______
22 + 10 = ______
2 × 10 = ______
