TNReady Review 7.NS.A

Which of the following situations involve opposite quantities combining to make 0?

• Stella has a new piggy bank. She adds 3 quarters on Tuesday, and then adds another 3 quarters on Thursday.

• Devon opens a new checking account with $30. His first purchase, made with his new debit card, totals $28.

• Joe makes 1.5 liters of lemonade and drinks it all during the afternoon.

• Britany is writing a novel. She wrote 4 new pages to finish Chapter 1. When she reviews Chapter 1, she discards these 4 pages and an additional 4 pages.

What is the location of the sum $11+\left(-5\right)$  with respect to 11 on a number line?

• 5 units in the negative direction

• 5 units in the positive direction

• 11 units in the negative direction

• 11 units in the positive direction

Which sum does the number line represent?

• $-11+\left(-9\right)$

• $-11+9$

• $-11+\left(-2\right)$

• $-11+\left(2\right)$

On a number line, which of the following sums is to the left of the first number in the sum? Check all that apply.

 $\frac{2}{3}-\frac{4}{5}$  

Which of the following is equivalent to

•  $\frac{2}{3}+\frac{4}{5}$  

•  $\frac{2}{3}+\left(-\frac{4}{5}\right)$  

•  $-\frac{2}{3}+\frac{4}{5}$  

•  $-\frac{2}{3}+\left(-\frac{4}{5}\right)$  

How does the expression $\left|9-\left(-5\right)\right|$  relate to the numbers -5 and 9 on the number line?

• The expression shows that 9 is greater than -5.

• The expression shows that -5 is to the left of 0 and 9 is to the right of 0 on the number line.

• The expression represents the sum of -5 and 9.

• The expression represents the distance between -5 and 9 on the number line.

Which of the following expressions results in the distance between -5 and 6 on a number line?

• $\left|6-5\right|$

• $\left|6-\left(-5\right)\right|$

• $\left|-5\right|-\left|6\right|$

• $\left|5-6\right|$

Which of the following expressions give the distance between the endpoints of the segment shown on the number line in the image?

Select all that apply.

•  $\left|-\frac{3}{5}-\left(-\frac{4}{5}\right)\right|$  

•  $\left|-\frac{3}{5}-\frac{4}{5}\right|$  

•  $-\frac{3}{5}-\frac{4}{5}$  

•  $\left|\frac{3}{5}-\frac{4}{5}\right|$  

•  $\left|\frac{4}{5}-\left(-\frac{3}{5}\right)\right|$  

What property allows $\left(-\frac{5}{6}+\frac{1}{3}\right)+\frac{5}{3}$  to be simplified to  $-\frac{5}{6}+2$  ?

• Additive inverse property

• Additive identity property

• Associative property of addition

• Commutative property of addition

Which of the following uses the additive inverse property correctly to simplify the expression?

• $\frac{14}{19}-\frac{7}{3}+\frac{7}{3}=\frac{14}{19}$

• $-\frac{10}{9}-\frac{11}{4}+\left(-\frac{11}{4}\right)=-\frac{10}{9}$

• $\frac{2}{5}+\frac{5}{4}+\frac{3}{5}=1+\frac{5}{4}$

• $15.81+\left(4.19+10.67\right)=20+10.67$