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
1 × 10 = ______
64 − 10 = ______
82 + 20 = ______
54 − 10 = ______
15 + 10 = ______
86 − 10 = ______
18 + 10 = ______
62 − 10 = ______
50 + 10 = ______
5 × 10 = ______
76 + 10 = ______
27 + 10 = ______
7 × 10 = ______
29 − 10 = ______
78 + 20 = ______
33 − 10 = ______
53 − 10 = ______
25 − 10 = ______
37 + 20 = ______
81 + 20 = ______
