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
62 + 20 = ______
99 − 10 = ______
7 × 10 = ______
18 + 10 = ______
3 × 10 = ______
36 + 10 = ______
64 + 10 = ______
16 + 10 = ______
65 − 10 = ______
41 + 20 = ______
80 − 10 = ______
2 × 10 = ______
87 − 10 = ______
78 + 10 = ______
47 + 20 = ______
60 + 10 = ______
75 + 10 = ______
6 × 10 = ______
9 × 10 = ______
54 − 10 = ______
