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
72 − 10 = ______
63 + 10 = ______
4 × 10 = ______
9 × 10 = ______
17 + 20 = ______
87 − 10 = ______
77 + 20 = ______
79 + 20 = ______
18 + 10 = ______
7 × 10 = ______
6 × 10 = ______
87 + 20 = ______
3 × 10 = ______
79 − 10 = ______
47 − 10 = ______
64 − 10 = ______
57 − 10 = ______
61 + 20 = ______
1 × 10 = ______
20 + 20 = ______
