NOTATION & ROUNDING Math Learning e-Resource Center Open University Malaysia

THOUSAND S HUNDRED S TEN S ONE S DECIMAL POINT TEN THS HUNDRED THS THOUSAND THS TEN THOUSAND THS HUNDRED THOUSAND THS ∙ 1/ 10 1/ 100 1/ / / PLACE VALUE © Math Learning e-Resource Center

TENTHS 5/10 = 0.5 HUNDREDTHS 6/100 = 0.06 THOUSANDTHS 7/1000 = TEN-THOUSANDTHS 8/ = HUNDRED-THOUSANDTHS 9/ = NOTATION- NEXT © Math Learning e-Resource Center

Identify Place Value Look at the Right Side Digit Leave the digit that needs to be rounded as it is. Add 1 to the digit that needs to be rounded. Replace the numbers to its right with zeros If 5 and above If Less than 5 STEPS: ROUNDING DECIMALS NEXT © Math Learning e-Resource Center

TENTHS 5/10 = 0.5 HUNDREDTHS 6/100 = 0.06 THOUSANDTHS 7/1000 = TEN-THOUSANDTHS 8/ = HUNDRED-THOUSANDTHS 9/ = ROUNDING- © Math Learning e-Resource Center

Example: Number 5 is in tenths column. To its right is 9 which is more than 5. Add 1 to that column,s0 the answer is or can be written as 27.6 NEXT © Math Learning e-Resource Center

Example: Digit 8 is in tenths column. To its right is 4 which is less than 5 Leave the digit as it is, so the answer is or can be written as BACK © Math Learning e-Resource Center

Example: Number 8 is in hundredths column. To its right is 6 which is more than 5. Add 1 to that column, so the answer is or can be written as 0.79 NEXT © Math Learning e-Resource Center

Example: Digit 5 is in hundredths column. To its right is 2 which is less than 5 Leave the digit as it is, so the answer is or can be written as BACK © Math Learning e-Resource Center

Example: Number 9 is in thousandths column. To its right is 9 which is more than 5. Add 1 to that column, so the answer is or can be written as NEXT © Math Learning e-Resource Center

Example: Digit 9 is in thousandths column. To its right is 3 which is less than 5 Leave the digit as it is, so the answer is or can be written as BACK © Math Learning e-Resource Center

Example: Number 8 is in ten-thousandths column. To its right is 7 which is more than 5. Add 1 to that column, so the answer is or can be written as NEXT © Math Learning e-Resource Center

Example: Number 5 is in ten-thousandths column. To its right is 1 which is less than 5. Leave the digit as it is, so the answer is or can be written as BACK © Math Learning e-Resource Center

Example: Number 3 is in hundred- thousandths column. To its right is 9 which is more than 5. Add 1 to that column, so the answer is or can be written as NEXT © Math Learning e-Resource Center

Example: Number 6 is in hundred- thousandths column. To its right is 3 which is less than 5. Leave the digit as it is, so the answer is or can be written as END SLIDE END SLIDE BACK © Math Learning e-Resource Center

END SLIDE -THANK YOU- © Math Learning e-Resource Center

Basic Math: Decimal - Notation and rounding by Open University Malaysia is licensed under a Creative Commons Attribution-Noncommercial 3.0 Unported License. Based on a work at Permissions beyond the scope of this license may be available at University Malaysia Creative Commons Attribution-Noncommercial 3.0 Unported License