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
77 + 10 = ______
41 − 10 = ______
61 + 10 = ______
61 − 10 = ______
7 × 10 = ______
48 − 10 = ______
22 + 20 = ______
35 − 10 = ______
81 − 10 = ______
29 + 20 = ______
21 − 10 = ______
17 + 10 = ______
2 × 10 = ______
41 + 10 = ______
72 − 10 = ______
80 − 10 = ______
3 × 10 = ______
73 + 10 = ______
82 + 10 = ______
30 + 10 = ______
