Question

Cassie has 8 red marbles and 12 yellow marbles. Her mom doubles her red and yellow marbles for her birthday. Use the distributive property to show how many marbles Cassie has.

Answer 1

2(8+12)

Distribute the 2 to the 8 and the 12

16+24

40

Answer 2

Cassie will have 40 marbles.

Explanation:

Cassie has 8 red marbles and 12 yellow marbles.

Her mom doubles her red and yellow marbles for her birthday.

So, we can denote this mathematically as:

2(8) for red marbles.

2(12) for yellow marbles.

We can write total marbles as:

`2(8)+2(12)` or

`(8+12)*2`

=
`(20)*2`

Total marbles = 40