Unit 3 Review

Unit 3 Review

Rational Numbers

Multiple Choice

Which of the following is NOT a rational number?

• 3/4

• 0.7

•  $\sqrt{34}$  

•  $1.\overline{6}$  

Fill in the Blanks

SOLVE:

 $\frac{\frac{1}{3}\cdot\frac{3}{5}}{\frac{5}{6}}$  

Multiple Choice

Which of the following is NOT equivalent to 3/4?

• $\frac{20}{16}-\frac{8}{16}$

• $\frac{1}{4}+\frac{3}{8}$

• $0.75$
  

• $\frac{2}{8}\cdot\ 3$

Multiple Choice

Solve the following:

 $\left(\frac{2}{3}\right)^2+\frac{1}{2}\cdot\frac{3}{5}$  

• 23/18

• 67/90

• 7/19

• 67/60

Fill in the Blanks

Using our rounding rules, ESTIMATE the solution to the following problem.

 $7\ \frac{9}{10}\ +\ 5\ \frac{12}{13}\ -\ 2\ \frac{1}{15}$  

Multiple Choice

When graphing rational numbers on a number line, how do you determine how many marks to make in between the whole numbers?

• the denominator

• the denominator minus 1

• the denominator plus 1

• the denominator divided by 2

Fill in the Blanks

Determine the integer that best represents the estimated answer to

 $\sqrt{27}$  

Multiple Choice

Which shows the following rational numbers in order from least to greatest?

 $2.5,\ -7,\ \sqrt{65},\ 2^3,\ \left(-3\right)^2$  

•  $\left(-3\right)^2,\ -7,\ 2^3,\ 2.5,\ \sqrt{65}$  

•  $-7,\ \left(-3\right)^2,\ \sqrt{65},\ 2.5,\ 2^3$  

•  $2^3,\ 2.5,\ \left(-3\right)^2,\ -7,\ \sqrt{65}$  

•  $-7,\ 2.5,\ 2^3,\ \sqrt{65},\ \left(-3\right)^2$  

Multiple Select

When solving the problem below, select ALL of the choices that could be used.

 $\frac{5}{6}+\frac{2}{3}$  

•  $\frac{4}{6}+\frac{5}{6}$  

•  $\frac{10}{12}+\frac{8}{12}$  

•  $\frac{8}{9}+\frac{12}{9}$  

•  $\frac{8}{18}+\frac{12}{18}$  

•  $\frac{20}{30}+\frac{25}{30}$  

Fill in the Blanks

Jessica needed to buy 5 yards of fabric for her sewing project. Fabric is sold at $2.73 per yard. If Jessica only has a $20 bill, how much change will she receive when she pays for the fabric?