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
8 × 10 = ______
92 − 10 = ______
2 × 10 = ______
1 × 10 = ______
30 − 10 = ______
81 + 20 = ______
88 + 10 = ______
36 + 10 = ______
4 × 10 = ______
5 × 10 = ______
71 − 10 = ______
51 − 10 = ______
3 × 10 = ______
50 + 10 = ______
36 + 20 = ______
70 + 20 = ______
23 − 10 = ______
18 + 10 = ______
72 − 10 = ______
26 − 10 = ______
