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
50 + 10 = ______
8 × 10 = ______
55 − 10 = ______
49 + 10 = ______
82 + 20 = ______
37 + 20 = ______
93 − 10 = ______
6 × 10 = ______
68 − 10 = ______
82 + 10 = ______
71 + 20 = ______
65 + 20 = ______
1 × 10 = ______
18 + 20 = ______
7 × 10 = ______
9 × 10 = ______
69 − 10 = ______
2 × 10 = ______
15 + 20 = ______
29 + 10 = ______
