Rounding Numbers to the Nearest Ten or Hundred

The video tutorial explains how to round numbers to the nearest ten and hundred using place value charts and vertical number lines. It introduces key terms such as rounding, benchmarks, and midpoints, and provides examples to illustrate the rounding process. The tutorial emphasizes the importance of determining benchmarks and midpoints to decide whether to round up or down. It concludes by encouraging viewers to practice rounding on their own.

What is the place value of the digit 5 in the number 152?

• Thousands

• Ones

• Tens

• Hundreds

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CCSS.4.NBT.A.1

What does it mean to round a number?

• To subtract 10 from a number

• To add 10 to a number

• To change a number to a more convenient value

• To multiply a number by 10

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CCSS.3.NBT.A.1

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What are benchmarks used for?

• To measure the length of a line

• To compare numbers

• To add numbers

• To subtract numbers

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CCSS.4.NF.A.2

What is the midpoint between 10 and 20?

• 25

• 10

• 15

• 20

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CCSS.HSN.CN.B.6

What are the benchmarks for rounding the number 62 to the nearest 10?

• 50 and 60

• 60 and 70

• 80 and 90

• 70 and 80

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Where would the number 62 be plotted on a vertical number line between 60 and 70?

• Exactly at 60

• Exactly at 65

• Closer to 70

• Closer to 60

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CCSS.2.MD.B.6

If a number falls exactly on the midpoint when rounding to the nearest 10, what should you do?

• Round down

• Round up

• Leave it as is

• Subtract 5

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CCSS.3.NBT.A.1

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What are the benchmarks for rounding the number 186 to the nearest 100?

• 150 and 250

• 200 and 300

• 100 and 200

• 250 and 350

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What is the midpoint between 100 and 200?

• 125

• 150

• 100

• 175

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CCSS.HSN.CN.B.6

To which number is 186 rounded to the nearest 100?

• 200

• 150

• 250

• 100

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3