Decimals

Naming and Rounding Decimals

100

Name this decimal? 14.37

Fourteen and thirty-seven hundredths

200

What do you do if there is a 9 in a decimal place?

 Round up by adding 1 to the previous place value

300

What decimal place is indicated? 6.79745

Hundredths place 

400

When do you have to round up in a rounding problem?

When the digit to the right of the one you're rounding is 5 or greater.

500

Round this number? 299.3567

299.3567

Adding and Subtracting Decimals

100

Add these Decimals? 9.8 + 2.6

12.4

200

Subtract these Decimals? 8.9 – 7.4

1.5

300

Add these Decimals? 5.9 + 8.3

14.2

400

Subtract these Decimals? 6.7 – 3.3

3.4

500

Add these Decimals? 14.3 + 3.14

17.44

Multiplying Decimals

100

What would the answer be if one number is negative and one is positive? 

You have to pick the number that is the biggest or the heaviest. 

200

Multiply these Decimals? -9 x 3.8

-34.2

300

Multiply these Decimals? 4.6 x 8.9

40.94

400

Multiply these Decimals? 6.0 x 6.7

40.2

500

Multiply these Decimals? 9.4 x -6

-56.4

Dividing Decimals

100

Divide these decimals? -2.8/1.2

-2.3

200

Divide these decimals? 3.2/-6

-0.5

300

What is a quotient?

A quotient is the conclusion of a division problem.

400

Divide these decimals? 6.84/2

3.42

500

Divide these decimals? 9.8/1.7 

5.7

(Blank)

100

How do you line up the decimal place?

Stack the numbers on top of each other, aligning the decimal points in a straight vertical line.

200

Multiply these decimals? 3.7 + 4.7

8.4

300

Subtract these decimals? 1.7 - 6.9

-5.2

400

What decimal place is indicated? 8.45607

Thousandths place

500

Multiply these decimals?  9.3 x 2.9

-26.97