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
27 + 10 = ______
30 − 10 = ______
86 − 10 = ______
38 + 10 = ______
3 × 10 = ______
65 − 10 = ______
76 + 20 = ______
8 × 10 = ______
77 − 10 = ______
2 × 10 = ______
1 × 10 = ______
24 + 10 = ______
38 + 20 = ______
63 + 20 = ______
70 − 10 = ______
57 + 20 = ______
58 + 10 = ______
82 − 10 = ______
57 + 10 = ______
37 − 10 = ______
