Rounding Decimals Using Place Value

Rounding Decimals

Let's practice rounding decimals. BEFORE we get to the multiple choice slide, SHOW YOUR WORK on your whiteboard or piece of paper. You may use the number line strategy OR the place value chart strategy to round the decimal (whatever works best for your brain!)

Place Values

- Review the place value chart to remember the names of the place values

- On the right side of the decimals point, each place value has a "ths" at the end

- On the left side, there are no "ths"

Multiple Choice

What is the value of digit 6 in 645?

• 6

• 60

• 600

Place Value

• It is going to be very important for you to know and understand the decimal place value.

• What is bigger six tens or six tenths?

• What is smaller three hundredths or three hundreds?

Decimals with Whole Numbers

• You can also write decimals that have whole numbers. You use the word AND in place of the decimal.

• For example 543.88 would be written as five hundred fourty three and eighty eight hundredths.

Multiple Choice

Compare the decimals: 9.327 and 9.236

• >

• <

• =

Multiple Choice

Compare the decimals: 5.2 and 5.20

• >

• <

• =

Multiple Choice

Compare the decimals: 0.07 and 0.08

• >

• <

• =

Round 12.087 to the place of the underlined digit.

• 12.087 Look at the digit following the underlined digit. Look at 7.

• Round to the next greater number of hundredths because 7 > 5.

Multiple Choice

Round the number to the place of the underlined digit: 10.245

• 10.2

• 10.24

• 10.25

• 10

Multiple Choice

Round the number to the place of the underlined digit: 73.4

• 7

• 70

• 80

• 73

Multiple Choice

Round to the nearest tenth: 7.86

• 7.8

• 7.9

• 7.86

• 7.96

Multiple Choice

Round to the nearest hundredth - 8.434

• 8.43

• 8.4

• 8.434

• 8.44

Multiple Choice

Round to the nearest whole number: 9.1

• 9

• 9.1

• 10

• 2

Multiple Choice

Round to the nearest tenth - 8.96

• 8.10

• 8.9

• 9.0

• 9.9

Multiple Choice

Round 23.542 to the nearest tenth.

• 23.5
• 23.6
• 23.54
• 23

Multiple Choice

Which of the following is 9.029 rounded to the nearest hundredth?

• 9.0
• 9.02
• 9.03
• 9.029

Multiple Choice

Round 47.941 to the nearest tenth.

• 47.9
• 48
• 47.91
• 48.1

Multiple Choice

What is 69.87 rounded to the nearest whole number?

• 690
• 70
• 69
• 68