Question

2. E

Kim baked 20 cookies. Her friend Amy
ate 4 cookies, and her brother ate 2
of the cookies. Which expression can
Kim use to find out how many cookies
are left?
a.
a.
20+ (4 + 2)
b. 20 - (4 + 2)
(20 - 4) + 2
d. 20 - (4-2)
b.
C.
d.

Answer 1

20 - (4 + 2)

Explanation:

The original amount is 20.

The number of cookies left is the original amount minus the amount that was eaten.

Amy ate 4 cookies.

Her brother ate 2 cookies.

Amount that was eaten: 4 + 2

Amount left = original amount - amount that was eaten

amount left = 20 - (4 + 2)

Answer 2

20-(4+2)

Explanation:

So since they are eating, they are taking away, or subtracting.