Question

start with -8+5= -3a. -8.35+ +5= ?b. -8.55 + +5.3 = ?c. -8.65 + +5.25=?

Answer 1

Answer

(a) -8.35 + +5 = -3.35

(b) -8.55 + +5.3 = -3.25

(c) -8.65 + +5.25 = -3.4

Explanation

Given:

-8 + 5 = -3

So,

(a) -8.35 + +5 = ?

+ x + = +

∴ - 8.35 + 5 = -3.35

(b) -8.55 + +5.3 = ?

+ x + = +

-8.55 + 5.3 = -3.25

(c) -8.65 + +5.25 = ?

+ x + = +

-8.65 + 5.25 = -3.4