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 = ______
2 × 10 = ______
31 + 10 = ______
88 + 10 = ______
82 + 20 = ______
6 × 10 = ______
25 + 20 = ______
73 − 10 = ______
7 × 10 = ______
71 + 20 = ______
33 + 20 = ______
52 − 10 = ______
31 − 10 = ______
29 + 10 = ______
82 + 10 = ______
45 − 10 = ______
87 − 10 = ______
36 + 10 = ______
72 + 10 = ______
27 + 20 = ______
