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 = ______
1 × 10 = ______
41 + 10 = ______
49 + 10 = ______
2 × 10 = ______
61 − 10 = ______
41 − 10 = ______
19 + 20 = ______
82 + 20 = ______
30 + 10 = ______
29 + 20 = ______
8 × 10 = ______
59 + 20 = ______
68 + 20 = ______
59 − 10 = ______
36 − 10 = ______
4 × 10 = ______
5 × 10 = ______
42 − 10 = ______
3 × 10 = ______
