Reann has stickers. She gives her friend half, and then her brother gives her 8 new ones. She ends up with 12 stickers. How many did she start with? Identify the operations needed to solve this problem.

Question

Subtraction and Division

Addition and Multiplication

Addition and Multiplication

Addition and Division

Answer 1

To solve the problem regarding Reann's stickers, we can break it down step by step.

1. Let $x$ represent the number of stickers Reann started with.

2. She gives half of her stickers to her friend, which means she gives away $\frac{x}{2}$ stickers.

3. After giving away half, she has $x-\frac{x}{2}=\frac{x}{2}$ stickers remaining.

4. Then, her brother gives her 8 new stickers, so now she has $\frac{x}{2}+8$ stickers.

5. According to the problem, this total equals 12 stickers:

   $$\frac{x}{2}+8=12$$

Now, let's solve for $x$:

1. Subtract 8 from both sides:

   $$\frac{x}{2}=12-8$$ $$\frac{x}{2}=4$$

2. To find $x$, multiply both sides by 2:

   $$x=4\times 2$$ $$x=8$$

So, Reann originally started with 8 stickers.

In terms of the operations involved:

• We used addition when combining the remaining stickers and the stickers received from her brother.
• We also used division when calculating half of her initial stickers.

Thus, the correct operations needed to solve this problem are Addition and Division.