OW 7 MA Decimals

When adding two decimal numbers, what do you do with the decimal point

• line it up

• move it to make the divisor a whole number, do the same in the dividend, then move it straight up in the quotient (answer)

• count the number of decimal places in both factors and add them up

When subtracting two decimal numbers, what do you do with the decimal point

• line it up

• move it to make the divisor a whole number, do the same in the dividend, then move it straight up in the quotient (answer)

• count the number of decimal places in both factors and add them up

When multiplying two decimal numbers, what do you do with the decimal point

• line it up

• move it to make the divisor a whole number, do the same in the dividend, then move it straight up in the quotient (answer)

• count the number of decimal places in both factors and add them up

When dividing two decimal numbers, what do you do with the decimal point

• line it up

• move it to make the divisor a whole number, do the same in the dividend, then move it straight up in the quotient (answer)

• count the number of decimal places in both factors and add them up

Multiply. Do not round your answer.

 $1.5\times12.63$  

• 75.78

• 7.578

• 18.945

• 189.45

Divide.

 $1.23\div0.15$  

Which statement about 1.23 divided by 0.15 is true?

• the divisor is a whole number

• the dividend should become 15

• the quotient does not have a hundredths place

Billy is planning to make an online purchase. He is buying a DVD for $16.37, a hat for $12.48, and a sweatshirt for $31.24. What will be his total before tax?

• $59.09

• $60.09

• $65.09

• $61.12

Divide.

 $3.451\div1.7$  

• 203

• 20.3

• 0.203

• 2.03

Jenna had $180.47 in her checking account. She bought groceries for $75.11 and gas for $29.64. How far below $100 is her checking account now?

• $80.47

• $4.74

• $24.28

• $75.72