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
48 + 20 = ______
77 − 10 = ______
43 + 10 = ______
2 × 10 = ______
89 + 20 = ______
5 × 10 = ______
80 − 10 = ______
63 + 20 = ______
9 × 10 = ______
4 × 10 = ______
38 + 20 = ______
1 × 10 = ______
73 + 20 = ______
65 − 10 = ______
53 − 10 = ______
63 + 10 = ______
73 + 10 = ______
18 + 20 = ______
87 + 20 = ______
85 + 10 = ______
