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
subtraction and division
subtraction and division
subtraction and multiplication
subtraction and multiplication
addition and division
addition and division
addition and multiplication
addition and multiplication
The operations needed to solve this problem are subtraction and addition.
First, we subtract the stickers that Reann gave her friend:
Reann's stickers - half of her stickers = Reann's stickers / 2
Next, we add the stickers that her brother gave her:
(Reann's stickers / 2) + 8 = 12
To find the number of stickers Reann started with, we need to solve the equation for Reann's stickers:
Reann's stickers / 2 + 8 = 12
So, Reann started with 16 stickers.
That wasn't an option.
Apologies for that. In that case, the operations needed to solve this problem are subtraction and multiplication.
Let's say Reann started with x stickers.
First, Reann gives half of her stickers to her friend:
x - (x/2)
Next, her brother gives her 8 new stickers:
(x - (x/2)) + 8 = 12
To solve for the value of x, we can simplify the equation:
x - (x/2) + 8 = 12
From here, we can use subtraction and multiplication to find the value of x.