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 = ______
76 + 20 = ______
34 − 10 = ______
87 + 20 = ______
1 × 10 = ______
6 × 10 = ______
8 × 10 = ______
66 + 10 = ______
40 + 10 = ______
78 − 10 = ______
84 + 10 = ______
3 × 10 = ______
2 × 10 = ______
80 + 10 = ______
46 + 10 = ______
84 − 10 = ______
33 − 10 = ______
31 − 10 = ______
35 + 10 = ______
11 + 10 = ______
