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
59 + 20 = ______
89 + 20 = ______
7 × 10 = ______
5 × 10 = ______
1 × 10 = ______
65 + 20 = ______
82 + 20 = ______
14 + 20 = ______
3 × 10 = ______
80 + 10 = ______
4 × 10 = ______
74 − 10 = ______
71 + 10 = ______
25 − 10 = ______
49 + 20 = ______
44 − 10 = ______
68 + 20 = ______
6 × 10 = ______
42 − 10 = ______
44 + 10 = ______
