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
25 − 10 = ______
28 + 10 = ______
32 + 20 = ______
17 + 10 = ______
2 × 10 = ______
82 − 10 = ______
36 − 10 = ______
47 − 10 = ______
78 − 10 = ______
74 − 10 = ______
29 + 20 = ______
77 − 10 = ______
79 + 20 = ______
1 × 10 = ______
3 × 10 = ______
5 × 10 = ______
28 + 20 = ______
20 + 10 = ______
76 − 10 = ______
38 + 10 = ______
