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 = ______
79 − 10 = ______
76 + 10 = ______
7 × 10 = ______
37 + 20 = ______
56 + 20 = ______
41 − 10 = ______
3 × 10 = ______
60 + 10 = ______
32 + 10 = ______
77 + 10 = ______
15 + 10 = ______
71 + 20 = ______
65 − 10 = ______
2 × 10 = ______
8 × 10 = ______
88 − 10 = ______
57 − 10 = ______
69 + 20 = ______
82 + 20 = ______
