Question

Reann has stickers she gives her friend half and then her brother gives her eight new ones. She ends up with 12 stickers. How many did she start with identified the operations needed to solve this problem? Would it be subtraction and multiplication, subtraction, and division, addition, and multiplication, or addition and division?

Answer 1

To solve this problem, the operations needed would be addition and division.

First, Reann gives half of her stickers to her friend. This can be represented as a division operation.

Let's say Reann starts with x stickers. After giving half to her friend, she has x/2 stickers left.

Next, her brother gives her eight new stickers. This can be represented as an addition operation.

After receiving eight new stickers, Reann ends up with x/2 + 8 stickers.

The problem states that Reann ends up with 12 stickers. So we can set up the equation:

x/2 + 8 = 12

To solve for x, we need to isolate x on one side of the equation. We can do this by subtracting 8 from both sides:

x/2 = 12 - 8
x/2 = 4

Finally, to find the value of x, we need to multiply both sides of the equation by 2:

2 * (x/2) = 4 * 2
x = 8

Therefore, Reann started with 8 stickers.