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
4 × 10 = ______
5 × 10 = ______
82 − 10 = ______
7 × 10 = ______
21 − 10 = ______
63 − 10 = ______
87 + 10 = ______
26 − 10 = ______
20 + 10 = ______
12 + 10 = ______
60 − 10 = ______
36 + 10 = ______
60 + 10 = ______
47 + 10 = ______
52 + 20 = ______
68 − 10 = ______
3 × 10 = ______
27 + 20 = ______
24 + 10 = ______
2 × 10 = ______
