Order of operations

Which step should be solved first in the following equation?

$$\left[8-\left(12\div3\right)+2\right]\times4$$

What is the value of this expression?

$$50-\left(3\times5\right)+\left(2\times4\right)$$

(a)  

What value is equivalent to this expression?

$$20-7\times2+\left(12\div3\right)$$

James wants to save money to buy two new games. He had $35 from his birthday, and he saved $5.20 each week from doing chores. The amount of money that each game costs is represented by the expression below.

$$\left[35+4\left(5.20\right)\right]\div2$$

(a)  

What is the value of the following expression?

$$\frac{5}{6}-\left[\frac{1}{3}+\frac{2}{9}\right]$$

Which statement is true about the parentheses in this expression?

$$5[(14+5)-3\times2]$$

Brianna is baking some cookies. She used $$\frac{1}{2}$$ a cup of flour in her first batch. She then makes 3 more batches with 2 cups of flour each. The total amount of flour that Brianna used can be found using the expression below.

$$\frac{1}{2}+\left(3\times2\right)$$

How much flour did Brianna use?

Which statement is true about the parentheses in this expression?

$$36\ \div(2\times2)+20$$

Priscilla is packing up her books because she is moving:

~She packs 12 boxes, each with 10 books

~She donated 35 books to the library

~She was given 7 books for her birthday

Which expression can be used to show how many books Priscilla has?

Kevin took $30 to the candy store. He bought three bags of candy for $1.50 each and a tub of cotton candy for $2.60. The amount of change that Kevin receives can be represented using the expression below.

$$30-\left[\left(3\times1.50\right)+2.60\right]$$

What is amount of change that Kevin received in dollars and cents?

(a)