math benchmark review

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to what it was. It often involves increasing or decreasing the number to the nearest specified place value.

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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; if it is less than 5, round down.

Front

What is standard form in mathematics?

Back

Standard form is a way of writing numbers using digits. For example, the number nine hundred six is written as 906 in standard form.

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How do you convert a number from word form to standard form?

Back

To convert from word form to standard form, identify the place values mentioned in the word form and write the corresponding digits. For example, 'five thousand and fifty two' is written as 5052.

Front

What is word form in mathematics?

Back

Word form is a way of writing numbers using words instead of digits. For example, the number 1,234 can be written in word form as 'one thousand two hundred thirty-four'.

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How do you write a number in word form?

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To write a number in word form, break it down into its place values and express each part in words. For example, 3,463 is written as 'three thousand four hundred sixty-three'.

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What does the term 'place value' mean?

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Place value refers to the value of a digit based on its position in a number. For example, in the number 4,562, the digit 5 is in the hundreds place, so its value is 500.

Front

How do you identify the place value of a digit in a number?

Back

To identify the place value of a digit, look at its position in the number. Starting from the right, the first digit is the ones place, the second is the tens place, the third is the hundreds place, and so on.

Front

What is the value of the digit 6 in the number 6,789?

Back

In the number 6,789, the digit 6 is in the thousands place, so its value is 6,000.

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How do you add numbers in word form?

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To add numbers in word form, first convert them to standard form, perform the addition, and then convert the result back to word form if needed.