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.(1 point)
Responses
addition and multiplication
addition and multiplication
subtraction and division
subtraction and division
subtraction and multiplication
subtraction and multiplication
addition and division
subtraction and addition
no, pick the CORRECT one from the options GIVENNNN
subtraction and division
To solve this problem, we need to use subtraction and addition operations.
First, let's break down the problem step by step:
1. Reann gives half of her stickers to her friend. This means she keeps half of her stickers, so we need to subtract that amount.
- Operation: Subtraction
2. Her brother gives her 8 new stickers. So we need to add those stickers to the remaining number.
- Operation: Addition
3. Reann ends up with 12 stickers. This gives us the final count of stickers she has.
- Operation: Equality/Comparision
Now, let's set up the equation:
Let's represent the total number of stickers Reann started with as "x".
1. Reann gives half of the stickers to her friend: x / 2
2. Her remaining stickers after giving half: x - (x / 2)
3. Her brother gives her 8 new stickers: (x - (x / 2)) + 8
4. Reann ends up with 12 stickers: (x - (x / 2)) + 8 = 12
To solve for "x", we can simplify the equation and isolate the variable:
(x - (x / 2)) + 8 = 12
x - (x / 2) + 8 = 12
Multiplying both sides by 2 to eliminate the fraction:
2x - x + 16 = 24
x + 16 = 24
x = 24 - 16
x = 8
Therefore, Reann started with 8 stickers.