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BODMAS: Learn without complication

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Information about BODMAS: Learn without complication
Education

Published on December 5, 2013

Author: aritrabhakat

Source: slideshare.net

Description

Learn your BODMAS once and for all, and you'll realise it wasn't hard at all. Links: My homepage (original PPT): http://www.slideshare.net/aritrabhakat Font: Whiteboard Modern Demo: http://www.bittbox.com/fonts/bb-free-font-whiteboard-modern-demo Font: Permanent Marker: http://www.fontspace.com/font-diner/permanent-marker.
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Learn your Bodmas easily B O DM AS Finding BODMAS complicated? The Order of Operations An easy lesson on how to learn your BODMAS

Is the font bad? You can see the original PPT if go to my page: To view the original PPT in the original font download the font “Whiteboard Modern Demo” from: and “Permanent Marker” from: If the hyperlinks don’t work all the links are in the description. An easy lesson on how to learn your BODMAS

The Order of Operations •BODMAS are used so that we don’t have to overuse parenthesis. • If we want to multiply 2*3 and then add by 5*4 you can’t write it like 2*3+5*4. You would have to do like 2*3+(5*4). •The BODMAS system prioritizes the * before the +, which will let you use less brackets. • There are several more reasons which you can read at http://mathforum.org/library/drmath/view/72759.html An easy lesson on how to learn your BODMAS

The letters stand for: B rackets O rders D ivision M ultiplication A ddition S ubtraction An easy lesson on how to learn your BODMAS

Meaning or example: B rackets O rders D ivision M ultiplication A ddition S ubtraction ( ), { }, [ ] 2 5 , 25 An easy lesson on how to learn your BODMAS 25÷5 5x5 5+5 10-5

The ORDER of Operations 1 2 3 4 B O D M A S rackets rders ivision ultiplication ddition ubtraction An easy lesson on how to learn your BODMAS

How to use it Continued on next slide... Part 1 The exam paper says: √*4+18*2(-5+2⁴)]+5 5 Complicated, huh? But using bodmas? √[4+18*2(-5+2⁴)]+5 5 First, take out a calculator An easy lesson on how to learn your BODMAS

How to use it Problem: Continued on next slide... part 2 You’ll have to calculate the √[4+18*2(-5+2⁴)]+5 numerator first (on the top) 5 Take the inside bracket first Exponents first! √[4+18*2(-5+2⁴)]+5= 2⁴=2*2*2*2=16 Use the BODMAS insIde the brackets: √[4+18*2(-5+16)]+5= -5+16=16-5= 11 There is no sign between two and the bracket, so 2* bracket: 2*11=22 √[4+18*2(11)]+5= Then following the BODMAS, take the multiplication: (with calculator) 18*22=396 √[4+18*22]+5= An easy lesson on how to learn your BODMAS

How to use it Problem: Continued on next slide... Part 3 √[4+18*2(-5+2⁴)]+5 5 Then add the 2 numbers that are left inside the bracket: √[4+396]+5= 4+396=400 Now the square root: √400+5= √400=20 Then we only have 2 numbers left to add: 20+5= The last step is just to divide the answer by 5: 25= 25/5= 5 5 An easy lesson on how to learn your BODMAS 20+5= 25

How to use it Problem: Continued on next slide... Part 4 √[4+18*2(-5+2⁴)]+5 5 Now i can correctly state that: √[4+18*2(-5+2⁴)]+5=5 5 So the answer is: 5 An easy lesson on how to learn your BODMAS

How to use it Problem: Continued on next slide... Part 5 √[4+18*2(-5+2⁴)]+5 5 Showing the work: √*4+18*2(-5+2⁴)++5= 5 √*4+18*2(-5+16)]+5= 5 √*4+18*2(11)++5= 5 √*4+18*22++5= 5 √*4+396++5= 5 An easy lesson on how to learn your BODMAS Side notes: 2*2*2*2=16 -5+16=16-5=11 2*11=22 18*22=396 4+396=400

How to use it Problem: Continued on next slide... Part 6 √[4+18*2(-5+2⁴)]+5 5 Showing the work: √400+5= 5 20+5= 5 25= 5 Answer: √*4+18*2(-5+2⁴)++5= 5 5 An easy lesson on how to learn your BODMAS Side notes: √400=20 20+5=25 25=5 5

How to use it Continued on next slide... Part 7 Have some training (answers on next slide): 1) 2*6+3-4/2-5+20/5*3+50 2) (3+3-5)*(15-5)*10-99 3) 50/5-7*2+11+3*10/2-2+6*5 4) 4+5-7+8*5-12*2/8+6-3+20/2 5) 9*9-30/3+5-6+7-2+9*9 6) 10*4-6+7-8/2+3*3+(4+5-6/3)+1)/2 An easy lesson on how to learn your BODMAS

How to use it Continued on next slide... Part 8 Answers: 1) 70 2) 1 3) 50 4) 52 5) 156 6) 27 An easy lesson on how to learn your BODMAS

THE END Please ask questions on the comments below if you did not understand.Please follow and support me for more SlideShares (but I’ll do them anyways even if you won’t support me). Please suggest me some topics too. Greetings, Aritra. An easy lesson on how to learn your BODMAS

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