ROUNDING

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler or to make it easier to work with, typically by increasing or decreasing the number to the nearest specified place value.

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Front

How do you round a number to the nearest ten?

Back

To round a number to the nearest ten, look at the digit in the ones place. If it is 5 or greater, round up by adding 1 to the ten's place. If it is less than 5, round down by keeping the ten's place the same.

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CCSS.3.NBT.A.1

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Front

Round 654 to the nearest ten.

Back

650

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Round 49 to the nearest ten.

Back

50

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Round 9 to the nearest ten.

Back

10

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Round 192 to the nearest ten.

Back

190

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Round 291 to the nearest ten.

Back

290

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Front

What is the rule for rounding numbers ending in 5?

Back

When rounding numbers that end in 5, you typically round up to the next whole number if the digit before the 5 is odd, and round down if it is even.

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CCSS.3.NBT.A.1

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Front

What is the difference between rounding up and rounding down?

Back

Rounding up means increasing the number to the next higher value, while rounding down means decreasing the number to the next lower value.

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Front

Why is rounding important in real-life applications?

Back

Rounding is important because it simplifies numbers, making them easier to understand and work with, especially in calculations involving money, measurements, and statistics.

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CCSS.3.NBT.A.1

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