Question

1. Representa las siguientes operaciones en la forma 1 e identifica los términos. a) (–3) + (+2) – (+7) b) (–8) – (–6) – (–5) – (+1)

Answer 1

Respuesta:

a) (7-2+4) - (2-5) =

= (5 +4) - (-3) =

= 9 + 3 =

= 12

b) 1-(5-3+2) - [5-(6-3+1)-2] =

= 1- ( 2+2) - [5- (3+1)-2] =

= 1- (+4) - [5- (+4)-2] =

= 1-4 - (5-4-2) =

= -3 - (-1) =

= -3 +1 =

= -2

c) 3-12^3+18 ÷ (-12÷6+8) =

= 3- 1728 + 18 ÷ ( -2+8) =

= 3 - 1728 + 18 ÷ 6 =

= 3 - 1728 +3

= - 1722

Answer 2

Respuesta paso a paso:

a) (7-2+4) - (2-5) = (5 +4) - (-3) = 9 + 3 =12.

b) 1-(5-3+2) - [5-(6-3+1)-2] = 1- ( 2+2) - [5- (3+1)-2] = 1- (+4) - [5- (+4)-2] = 1-4 - (5-4-2) = -3 - (-1) = -3 +1 = -2.

c) 3-12^3+18 ÷ (-12÷6+8) = 3- 1728 + 18 ÷ ( -2+8) = 3 - 1728 + 18 ÷ 6 = 3 - 1728 +3= - 1722.