⇐ Back Rounding decimal numbers To round a decimal number to a whole number means rounding the number to the ones column. Show Rules for Rounding Decimals Hide Rules for Rounding Decimals Rules for Rounding Decimals to a whole number. Identify the digit in the ones place. Check the digit in the first decimal (tenths) place. If this digit is 0, 1, 2, 3 or 4, then leave the digit in the ones place as it is. If this is 5, 6, 7, 8 or 9, then add one to the digit in the ones place. For example: 25.382 = 25.382 = 25 25.832 = 25.832 = 26 To round a number to 1.d.p. or (to tenths) means to leave one number after the decimal point. Show Rules for Rounding Decimals Hide Rules for Rounding Decimals Rules for Rounding Decimals to 1.d.p. Identify the digit in the first decimal (tenths) place. Check the next digit in the second decimal (hundredths) place. If this digit is 0, 1, 2, 3 or 4, then leave the digit in the tenths place as it is. If this is 5, 6, 7, 8 or 9, then add one to the digit in the tenths place. For example: 25.3287 = 25.3|287 = 25.3 25.4832 = 25.4|832 = 25.5 To round a number to 2.d.p. or to (hundredths) means to leave two numbers after the decimal point. Show Rules for Rounding Decimals Hide Rules for Rounding Decimals Rules for Rounding Decimals to 2.d.p. Identify the digit in the second decimal (hundredths) place. Check the next digit in the third decimal (thousandths) place. If this digit is 0, 1, 2, 3 or 4, then leave the digit in the hundredths place as it is. If this is 5, 6, 7, 8 or 9, then add one to the digit in the hundredths place. For example: 25.3547 = 25.35|47 = 25.35 25.3574 = 25.35|74 = 25.36 To round a number to 3.d.p. or (to thousandths) means to leave three numbers after the decimal point. Show Rules for Rounding Decimals Hide Rules for Rounding Decimals Rules for Rounding Decimals to 3.d.p. Identify the digit in the third decimal (thousandths) place. Check the next digit in the fourth decimal (ten-thousandths) place. If this digit is 0, 1, 2, 3 or 4, then leave the digit in the thousandths place as it is. If this is 5, 6, 7, 8 or 9, then add one to the digit in the thousandths place. For example: 25.3542 = 25.354|2 = 25.354 25.3576 = 25.357|6 = 25.358 Remember these general rules for rounding decimals Show Rules for Rounding Decimals Hide Rules for Rounding Decimals Rules for Rounding Decimals to a whole number. Identify the digit to be rounded. Check the next digit to the right of the digit being rounded. If this digit is 0, 1, 2, 3 or 4, then leave the rounding digit as it is. If this is 5, 6, 7, 8 or 9, then add one to the rounding digit. Level 1 Level 2 Level 3 Level 4 Level 5 Round decimals to the nearest whole number ?→ CheckClear Next Reset Hint Hide Hint Completed × Well done! You earned all 3 trophies! Hints used: 0 Enrol now to get trophies Attempts: 0 ? Get a score of 10 to earn a gold trophy! Round to one decimal place ?→ CheckClear Next Reset Hint Hide Hint Completed × Well done! You earned all 3 trophies! Hints used: 0 Enroll now to get trophies Attempts: 0 ? Get a score of 10 to earn a gold trophy! Round to two decimal places ?→ CheckClear Next Reset Hint Hide Hint Completed × Well done! You earned all 3 trophies! Hints used: 0 Enroll now to get trophies Attempts: 0 ? Get a score of 10 to earn a gold trophy! Round to three decimal places ?→ CheckClear Next Reset Hint Hide Hint Completed × Well done! You earned all 3 trophies! Hints used: 0 Enroll now to get trophies Attempts: 0 ? Get a score of 10 to earn a gold trophy! Round to given decimal place Round to: 1 d.p. 2 d.p. 3 d.p. 4 d.p. ? Check Next Reset Completed × Well done! You earned all 3 trophies! Enroll now to get trophies Attempts: 0 ? Get a score of 10 to earn a gold trophy!