Question

resuelve los distintos ejercicios con paréntesis utilizando la jerarquía de las operaciones
1. (8 ×9)- 45 =
2. 3 × (2 × 5) - 30 =
3. (9 x 5) - (3 x 5) =
4. (5 - 2) × 6 + 4 =
5. (9 × 3) - (6 × 4) =
6. 2 + (3 + 4 + 2) - 12 =
7. 7 × (2 × 5) + 8 =
8. 4 × (5 × 4) - 18 =​
porfi es urgente:((

Answer 1

Respuesta:

(8x9)-45

=72-45

=27

3x (2x5)-30

=3x10-30

=30-30

=0

(9x5)-(3x5)

=45-15

=30

(5-2)x6+4

=3×10

=30

(9×3)-(6×4)

=27-24

=3

2+(3+4+2)-12

=2+9-12

=11-12

=-1

7×(2×5)+8

=7×10+8

=70+8

=78

Explicación paso a paso: