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
8 × 10 = ______
71 + 10 = ______
41 − 10 = ______
19 + 20 = ______
6 × 10 = ______
2 × 10 = ______
97 − 10 = ______
63 + 10 = ______
17 + 20 = ______
55 + 20 = ______
45 + 20 = ______
19 + 10 = ______
46 + 10 = ______
95 − 10 = ______
82 − 10 = ______
24 + 10 = ______
70 − 10 = ______
83 − 10 = ______
73 + 10 = ______
86 − 10 = ______
