A Peek Beyond the Point

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We need smaller units to measure objects more accurately when the difference between measurements is very small. For example, two screws that look identical may have slightly different lengths that ca

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A tenth part is created when we divide one unit into 10 equal parts. Each part is 1/10 of the unit. Ten tenths make one whole unit. It is written as 1/10 in fraction form and 0.1 in decimal form.

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27/10 is read as 'two and seven-tenths' or 'twenty-seven tenths'. It equals 2 + 7/10, which means 2 whole units and 7 tenth parts.

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27/10 + 36/10 = (2 + 7/10) + (3 + 6/10) = (2 + 3) + (7/10 + 6/10) = 5 + 13/10 = 5 + 1 + 3/10 = 6 + 3/10 = 63/10 or 6.3

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A hundredth part is created when we divide one-tenth into 10 equal parts. Each part is 1/100 of the unit. One hundred hundredths make one whole unit. Ten hundredths make one tenth. It is written as 1/

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10 one-hundredths make one-tenth. This is because 1/10 = 10/100, so 10 × (1/100) = 1/10.

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The decimal place value system is based on the number 10. Each place value is 10 times bigger than the one to its right and 10 times smaller than the one to its left. This extends to fractional parts:

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The decimal point (.) separates the whole number part from the fractional part in decimal notation. It helps us identify where integers end and fractional parts begin, preventing confusion between dif