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
82 + 20 = ______
95 − 10 = ______
75 + 10 = ______
71 − 10 = ______
9 × 10 = ______
46 + 10 = ______
12 + 10 = ______
3 × 10 = ______
2 × 10 = ______
21 + 20 = ______
50 + 20 = ______
32 − 10 = ______
1 × 10 = ______
32 + 20 = ______
86 + 10 = ______
37 − 10 = ______
97 − 10 = ______
56 + 10 = ______
34 + 20 = ______
87 − 10 = ______
