Question

Quon has 15 cookies. He eats one in the afternoon and another in the evening. What number describes the total change in the amount of cookies?

Answer 1

The number -2 shows the total change in amount of cookies. The negative sign signifies the decrease in the number.

Explanation:

Total cookies Quon has = 15

Cookies eaten in the afternoon = 1

Cookies eaten in the evening = 1

So, total number of cookies consumed =
`1+1 =2`

Cookies left with Quon =
`15-2=13`

So, the number -2 shows the total change in amount of cookies. The negative sign signifies the decrease in the number.