Rounding Numbers and Rules

The video tutorial explains how to round the number 282 to the nearest 10 and 10,000 using both a number line and formal rounding rules. It begins with rounding to the nearest 10, demonstrating the process on a number line and then applying formal rules. The tutorial then covers rounding to the nearest 10,000, again using a number line and formal rules, highlighting the special case when a number is exactly in the middle of two rounding options.

When rounding 282 to the nearest 10 using a number line, which two numbers is it between?

• 280 and 290

• 270 and 290

• 270 and 280

• 290 and 300

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CCSS.3.NBT.A.1

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What is the result of rounding 282 to the nearest 10 using the number line?

• 300

• 280

• 285

• 290

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What is the special case when rounding a number that is exactly in the middle of two possible rounded values?

• Choose the higher value

• Choose the lower value

• Always round up

• Always round down

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What is the first step in rounding a number to the nearest 10?

• Identify the digit in the hundreds place.

• Identify the digit in the tens place.

• Identify the digit in the ones place.

• Identify the digit in the thousands place.

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CCSS.3.NBT.A.1

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Using the formal rules, what happens to the digits to the right of the rounding place value when rounding down?

• They remain the same.

• They double.

• They become one.

• They become zero.

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CCSS.3.NBT.A.1

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When rounding 282 to the nearest 10,000 using a number line, which two numbers is it between?

• 5,000 and 10,000

• 0 and 10,000

• 0 and 5,000

• 0 and 1,000

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What is the result of rounding 282 to the nearest 10,000 using the number line?

• 0

• 5,000

• 10,000

• 1,000

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

In the formal rules for rounding to the nearest 10,000, what is added to identify the rounding place value?

• A zero in the tens place

• A zero in the ones place

• A zero in the thousands place

• A zero in the hundreds place

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What is the result of rounding 282 to the nearest 10,000 using formal rules?

• 5,000

• 1,000

• 0

• 10,000

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What is the second step in the formal rules for rounding a number?

• Subtract one from the rounding place value.

• Add a zero to the rounding place value.

• Look at the digit to the right of the rounding place value.

• Look at the digit to the left of the rounding place value.

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CCSS.3.NBT.A.1

CCSS.4.NBT.A.3