Question

The sum of 43.9 and a number is 49.65, as shown below. What number should go in the box to complete the addition problem? 43.9 plus box.75 equals 49.65

Answer 1

you put 5.75 in the box all u have to do is subtract 49.65 by 43.9 to get your answer

Answer 2

5

Explanation:

The sum of 43.9 and a number is 49.65

First make equation using given phrase

Let number be x

"sum of 43.9 and a number" ⇒ 43.9 + x

43.9 + x is 49.65

Therefore, 43.9 + x = 49.65

Now solve for x

43.9 + x = 49.65 [ subtract 43.9 both sides ]

x = 49.65 - 43.9

x = 5.75

Expression:

43.9 + ?.75 = 49.65

↓

43.9 + 5.75 = 49.65

So, ? = 5

Hence, 5 will go in the box