Scribd
Upload
7 views1 page

RN 17

The document provides instructions on rounding numbers to two decimal places, detailing the rules for adjusting the second digit based on the third digit. It includes examples and exercises for rounding various numbers, emphasizing the importance of the third digit in determining whether to increase the second digit. The document is aimed at teaching the concept of rounding in a clear and structured manner.

Uploaded by

Aaron
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
7 views1 page

RN 17

The document provides instructions on rounding numbers to two decimal places, detailing the rules for adjusting the second digit based on the third digit. It includes examples and exercises for rounding various numbers, emphasizing the importance of the third digit in determining whether to increase the second digit. The document is aimed at teaching the concept of rounding in a clear and structured manner.

Uploaded by

Aaron
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
You are on page 1/ 1

RN.

17

Rounding to two decimal places


NS4.3

Round 8.237 84 to two decimal places.

You must use the first two digits to the right of the decimal point.
8. 237 84
You must also consider the third digit to the right of the decimal point.

Rule:
If the third digit is 5 or bigger, increase the second digit by 1.
If the third digit is smaller than 5, do not change the second digit.

In this example, the third digit after the decimal point is 7. So you need to increase the second digit
(3) by 1, making it 4.
 8.237 84 = 8.24 rounded to two decimal places.

1 Round each of the following numbers to two decimal places. (The first one has been done for you.)
(a) 6.2348 = 6.23 (b) 18.2481 = 18 . ……
 smaller than 5  …………………… than 5
 no change to second digit  add 1 to second digit
(c) 0.2718 = ……… (d) 0.008 76 = ………
 …………………… than 5  …………………… than 5
 …………………… to second digit  …………………… to second digit
(e) 8.1572 = ……… (f) 18.2934 = ………
 …………………… than 5  …………………… than 5
 …………………… to second digit  …………………… to second digit
(g) 81.3984 = ……… (h) 823.189 = ………
 …………………… than 5  …………………… than 5
 …………………… to second digit  …………………… to second digit

2 Round each of the following numbers to two decimal places.


(a) 83.2156 = ………… (b) 6.2194 = ………… (c) 8.2983 = …………
(d) 2.1154 = ………… (e) 6.0234 = ………… (f) 11.119 = …………
(g) 62.3104 = ………… (h) 8.0062 = ………… (i) 3.209 = …………

Click here for answers

eMaths Zone 9: Level 2 © Reed International Books Australia Pty Ltd

You might also like