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
6 × 10 = ______
92 − 10 = ______
3 × 10 = ______
17 + 10 = ______
50 + 20 = ______
36 + 10 = ______
74 + 20 = ______
21 + 10 = ______
1 × 10 = ______
51 + 10 = ______
66 + 10 = ______
70 + 20 = ______
39 − 10 = ______
88 + 20 = ______
77 − 10 = ______
2 × 10 = ______
30 + 20 = ______
5 × 10 = ______
53 − 10 = ______
36 − 10 = ______
