Question

Tom had $56. He bought a soda for $2 and 2 cookies for $3. Which expression correctly shows the total money Tom has left? (1 point)
A
$56 + (−$2) + (−$3)
B
$56 + (−$2) − (−$3)
C
$56 − (−$2) − (−$3)
D
$56 − (−$2) + (−$3)
Select one:
a. A
b. B
c. C
d. D

Answer 1

any ideas? since he is buying things, the cost of the soda and cookies must be taken away from 56

as a hint: A + (-B) is the same as A - B

Answer 2

for each answer choice you can try distributing when appropriate

$56 + (−$2) + (−$3)

distributing the + signs gives us

56 - 2 - 3

is this an accurate representation of the idea in the problem?

Answer 3

so the answer would be c

Answer 4

oh no it would be a

Answer 5

good, for choice C the negative signs cancel out to become positive so that would be adding the cost back

so choice A is the better answer