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
3 × 10 = ______
8 × 10 = ______
71 − 10 = ______
41 + 20 = ______
24 − 10 = ______
70 + 10 = ______
37 − 10 = ______
48 − 10 = ______
41 + 10 = ______
7 × 10 = ______
2 × 10 = ______
51 + 10 = ______
44 + 20 = ______
71 + 20 = ______
65 − 10 = ______
89 + 10 = ______
16 + 20 = ______
30 − 10 = ______
16 + 10 = ______
53 + 20 = ______
