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
42 − 10 = ______
28 + 10 = ______
79 + 10 = ______
63 + 10 = ______
6 × 10 = ______
5 × 10 = ______
68 + 10 = ______
15 + 20 = ______
23 − 10 = ______
1 × 10 = ______
9 × 10 = ______
3 × 10 = ______
46 + 10 = ______
43 − 10 = ______
70 − 10 = ______
34 + 20 = ______
78 + 20 = ______
47 − 10 = ______
2 × 10 = ______
65 − 10 = ______
