Decimals are written in word form by using a place value chart and using the place of the last digit on the chart to name the given number. Decimals on a place value chart are designated in tenths, hundredths, thousandths, ten-thousandths, hundred-thousandths, millionths and so on.
Know MoreIf a decimal is 0.500, then the written form is five hundred thousandths. This is because the number after the decimal is 500, and the final number, zero, lands in the thousandths place on the place value chart. This is not to be confused with 0.00005, which is written five hundred-thousandths. Both sound the same when spoken but are two different numbers.
Learn more about WritingWhen rounding a whole number, it is important to identify first the digit being rounded with its place value, such as tens, or hundreds. Once the rounding digit is identified the rule is to look at the number that is to the right of the rounding digitto see if it is less than or greater than 5. If this number is 5 or greater, the rounding digit increases by 1and the digits to the right of it become zeros.
Full Answer >When rounding decimals, the number value of the last retained decimal is increased by 1 if the number in the next decimal place is 5 or greater. If the next decimal is less than 5, the number value of the last retained decimal simply remains the same.
Full Answer >To write decimals in standard form, move the decimal point to the right until it is at the right of the first nonzero digit. Then, multiply the number by 10 to the power of the negative of the number of spaces the decimal point was moved.
Full Answer >In math, number and word notation is simply writing the significant digits of a large number and using words for the place value. For example, the number 45,000 in number and word notation is 45 thousand.
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