Math Topic 5 Review - Dividing Decimals

Math Topic 5 Review

Dividing Decimals

Multiple Choice

Look at the expression below:

 $99.3\ \div\ 10^2$  


Which of these shows and explains the correct location of the decimal point when the expression is evaluated?

• 99,3000 because the decimal point moves 2 places to the right when you divide by  $10^2$  

• 0.993 because the decimal point moves 2 places to the left when you divide by  $10^2$  

• 0.0993 because the decimal point moves 2 places to the left when you divide by  $10^2$  

• 993,000 because the decimal point moves 2 places to the right when you divide by  $10^2$  

Multiple Choice

Consider the number 4630.5

Which statement is correct?

• To divide the number by 10, move the decimal point one place to the right.

• To multiply the number by 1,000, move the decimal point three places to the left.

• To divide the number by 100, move the decimal point two places to the left.

• To multiply the number by 100, move the decimal point three places to the right.

Multiple Choice

Look at the equation below.

 $70.03\ \div\ 10^{0\ }=\ ?$  

• 0.00703

• 70.03
  

• 700.3

• 7.003

Multiple Choice

Look at the equation below.

 $80.5\ \div\ n\ =\ 0.805$  


What is the correct answer that completes the equation?

•  $10^0$  

•  $10^1$  

•  $10^2$  

•  $10^3$  

Multiple Choice

Which equation is correct?

• $925\ \div\ 1,000\ =\ 925,000$

• $925\ \div\ 1,000\ =\ 9,250$

• $925\ \div\ 1,000\ =\ 0.00925$

• $925\ \div\ 1,000\ =\ 0.925$

Multiple Choice

Find the value of n.

 $5.4\ \div\ n\ =\ 0.054$  

•  $10^0$  

•  $10^2$  

•  $10^4$  

•  $10^1$  

Multiple Choice

Find the value of n.

 $n\ \div\ 10^3\ =\ 0.375$  

• 375

• 37.5

• 3.75

• 0.375

Multiple Select

Consider the expression below.

 $92\ \div\ 10^3$  

Select three that apply.

• The expression is equivalent to 0.092

• The expression will have 2 zeros before the 9

• It is the same thing as dividing 92 by 1000

• The expression is equivalent to 3 times smaller than 92

• It is the same thing as  $92\ \div\ 10\ \div\ 10\ \div\ 10$  

Multiple Choice

Look at the equation below.

 $86.5\ \div\ 10^1\ =\ ?$  

What is the value of the equation?

• 0.865

• 8.65

• 86.5

• 865

Multiple Choice

Solve:

 $10.12\ \div\ 4.6$  

• .022

• .542

• 2.2

• 5.42

Multiple Choice

Walmart is having a 3 pants special. Christine bought 3 pants on sale for $35.97. If she would have bought one more pant, she would have paid $16.24. How much money is Christine saving on each pant by buying the 3 pants on special?

• $19.73

• $12.75

• $6.68

• $4.25

Multiple Choice

Find the quotient.

 $1.05\ \div\ 0.15$  

• 0.7

• 7

• 70

Multiple Choice

Use the model to complete the number sentence.

 $2.8\ \div\ ?\ =\ 4$  

• 0.07

• 0.7

• 4

• 7

Multiple Choice

Solve.

 $2.88\ \div\ 0.4$  

• 7.2

• 0.72

• 72

• 720

Multiple Choice

Dahmyla has 4.8 pounds of ground beef. She makes 8 burgers of equal amounts. Dahmyla draws this model to show how much each burger will weigh.

Is Dahmyla's model correct? Why or why not?

• Dahmyla's model is incorrect. Her model shows 48 tenths divided into 6 equal groups of 8 tenths. Dahmyla will have 0.8 pounds of ground beef in each burger.

• Dahmyla's model is correct. Her model shows 48 tenths divided into 8 equal groups of 6 tenths. Dahmyla will have 0.6 pounds of ground beef in each burger.

• Dahmyla's model is incorrect. Her model shows 42 tenths divided into 6 equal groups of 7 tenths. Dahmyla will have 0.7 pounds of ground beef in each burger.

• Dahmyla's model is correct. Her model shows 42 tenths divided into 7 equal groups of 6 tenths. Dahmyla will have 0.6 pounds of ground beef in each burger.