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
34 − 10 = ______
69 − 10 = ______
1 × 10 = ______
17 + 10 = ______
50 + 20 = ______
77 − 10 = ______
65 + 10 = ______
63 − 10 = ______
70 + 10 = ______
63 + 20 = ______
3 × 10 = ______
36 − 10 = ______
71 + 20 = ______
42 − 10 = ______
68 − 10 = ______
2 × 10 = ______
8 × 10 = ______
46 − 10 = ______
6 × 10 = ______
33 + 10 = ______
