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
92 − 10 = ______
82 − 10 = ______
54 + 20 = ______
86 + 20 = ______
53 + 10 = ______
20 + 20 = ______
31 − 10 = ______
65 + 20 = ______
50 + 20 = ______
29 + 20 = ______
77 − 10 = ______
45 − 10 = ______
1 × 10 = ______
8 × 10 = ______
5 × 10 = ______
14 + 10 = ______
35 − 10 = ______
96 − 10 = ______
9 × 10 = ______
46 − 10 = ______
