3rd Grade Math : Number Sense

Study concepts, example questions & explanations for 3rd Grade Math

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Example Questions

Example Question #1 :Number Sense

What isrounded to the nearest ten?

Possible Answers:

Correct answer:

Explanation:

When we round a number to the tens place we look to our ones place to tell us if we round up or down.

If the number in our ones place isor greater, we round up. If the number in the ones place isor less, we round down. When we round up, the number in the tens place increases by. The numbers to the right of the tens place becomeand the numbers to the left of the tens place stay the same. When we round down, the number in the tens place stays the same. The numbers to the right of the tens place becomeand the numbers to the left of the tens place stay the same.

In this case,is equal toso our rounded number is

Example Question #2 :Number Sense

What isrounded to the nearest hundred?

Possible Answers:

Correct answer:

Explanation:

When we round a number to the hundreds place we look to our tens place to tell us if we round up or down.

If the number in our tens place isor greater, we round up. If the number in the tens place isor less, we round down. When we round up, the number in the hundreds place increases byand all the other numbers become. When we round down, the number in the hundreds place stays the same and all the other numbers become.

In this case,is less thanso our rounded number is

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