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
53 + 10 = ______
82 + 20 = ______
35 + 20 = ______
30 + 10 = ______
41 + 20 = ______
92 − 10 = ______
96 − 10 = ______
3 × 10 = ______
79 + 20 = ______
66 + 20 = ______
33 + 10 = ______
63 + 10 = ______
46 + 20 = ______
35 − 10 = ______
58 + 10 = ______
8 × 10 = ______
34 − 10 = ______
77 + 10 = ______
2 × 10 = ______
43 − 10 = ______
