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
80 − 10 = ______
3 × 10 = ______
50 + 10 = ______
78 + 10 = ______
72 − 10 = ______
78 + 20 = ______
61 − 10 = ______
98 − 10 = ______
30 − 10 = ______
4 × 10 = ______
6 × 10 = ______
85 − 10 = ______
2 × 10 = ______
47 − 10 = ______
58 + 10 = ______
45 − 10 = ______
48 + 20 = ______
1 × 10 = ______
85 + 20 = ______
99 − 10 = ______
