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
27 + 10 = ______
25 − 10 = ______
66 − 10 = ______
60 − 10 = ______
82 + 10 = ______
6 × 10 = ______
27 − 10 = ______
3 × 10 = ______
31 + 20 = ______
22 − 10 = ______
5 × 10 = ______
19 + 10 = ______
75 + 10 = ______
21 + 10 = ______
49 + 20 = ______
81 − 10 = ______
47 + 10 = ______
88 + 10 = ______
25 + 10 = ______
69 − 10 = ______
