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
9 × 10 = ______
96 − 10 = ______
80 + 10 = ______
92 − 10 = ______
1 × 10 = ______
6 × 10 = ______
50 − 10 = ______
44 − 10 = ______
44 + 20 = ______
85 + 10 = ______
30 − 10 = ______
87 − 10 = ______
3 × 10 = ______
5 × 10 = ______
2 × 10 = ______
84 + 20 = ______
33 + 10 = ______
15 + 10 = ______
54 + 10 = ______
70 + 20 = ______
