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
5 × 10 = ______
9 × 10 = ______
60 − 10 = ______
69 + 10 = ______
50 + 10 = ______
76 − 10 = ______
3 × 10 = ______
57 + 10 = ______
4 × 10 = ______
2 × 10 = ______
63 + 20 = ______
36 + 20 = ______
78 + 10 = ______
62 − 10 = ______
8 × 10 = ______
73 − 10 = ______
6 × 10 = ______
84 − 10 = ______
27 + 20 = ______
30 + 10 = ______
