# A-01 Basic operations

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1 Appendix Clcult skills Bsic keys Key Use Key Use +,,, Bsic opertions ( ) + / Enters negtive numbers Equls sign, gives the = nswer b c Enters frctions. Deciml point ( ) Enters prentheses DEL Deletes previous entry x ANS Retrieves previous nswer Squres number Finds the squre root of number Allows us to move round the screen x Cubes number MODE SHIFT ndf Accesses other opertions Finds the cube root of number A-0 Bsic opertions Exmple : Perfming clcultion =.... = 6... = (. +.) 6 (. +. ) = 6. Exmple : Crecting wrong entry Wrong entry: + To crect this, we use DEL : + DEL 6 6 = b Wrong entry: + 6 = To crect this, press to go bck to, press DEL nd then 6, then press =. APPENDIX CALCULATOR SKILLS

2 Exercise A-0 Bsic opertions Clculte ech of the following. 6 b 6.. c 0 d..0 e..6 f. +.. g h.6 ( ) i (6 ) (. ) j.6.. k ( ) (..6) l ( ) Bronte purchsed lof of bred f \$., pcket of cnflkes f \$. nd kg of tomtoes f \$. per kg. Find the totl cost. b Find the chnge Bronte will receive from \$0 note. Mrk strted the month with \$60 in his bnk ccount. He mde deposits of \$0 nd \$.0 nd withdrew \$0. How much ws left in Mrk s ccount? An unloded truck hs mss of 60 kg. It is loded with eight boxes, ech weighing kg. Wht is the totl mss of the truck nd the boxes? Smnth needs to cut.6 m length of rope into four equl pieces. Find the length of ech piece. 6 Peter miled Christms crds to his friends. If the stmps were c ech, how much did he spend on stmps? An chrd hs trees rrnged in 6 rows. How mny trees re in ech row? A trin tkes hours to trvel km. How fr does it trvel in one hour? Mrgret bought 60 L of petrol t.c per litre. How much did she py f the petrol? 0 Wombt High School hs the following numbers of students in ech Yer level. The whole school is going on n excursion. If ech bus cn crry people, how mny buses will be needed? The mnger of spts ste purchsed tennis rcquets f \$.60 ech nd sold them f \$0.0 ech. Find the profit mde on ech rcquet. b Find the totl profit. A btsmn sced the following runs over five cricket innings. 66 Find the btsmn s verge sce. 6 NEW CENTURY MATHS Yer Yer Yer Yer 0 Yer Yer

3 A-0 Integers Exmple : Perfming clcultions involving integers Csio Shrp - + ( ) + = + / + = (-) ( ) = + / = - (-) ( ) = + / = 0 Exercise A-0 Integers Clculte ech of the following. - + b -6 c - d 6 (-) e (-) f - + g - (-) h - (-) i + (-) j - + (-) k 6 (-) l - (-) m - n (- + ) o 0 (-) p (-) + 0 q 6 (-) r (-) (-) s (- + ) t - (-) A-0 Powers nd roots Check with your techer to locte the following keys: x x Exmple : Finding powers nd roots with clcult 6 6 x = 6 x = 6 6 = = APPENDIX CALCULATOR SKILLS

4 Exercise A-0 Powers nd roots Find: b c 6 d. e. f 0 g.0 h Find: 66 b c d. e 6. f g.6 h 0 Evlute the following crect to one deciml plce. b 0 c d Clculte: b 6 0 c d e 6 6 f g Find the following, crect to two deciml plces. b 6 c 6 A-0 Frctions Note: Some Csio clcults hve two wys of entering frctions (using MATH mode LINE mode). In the following exmples, we use LINE mode. Ask your techer if you need to use MATH mode. Exmple : Converting frctions Csio Shrp 6 Simplify = 0 6 b c 0 = Chnge to n improper frction Chnge - to mixed numerl = SHIFT b c b c = ndf b c = b c = Chnge to deciml. Chnge. to frction. = S D = NEW CENTURY MATHS b c = b c = 0.. = S D. = b c - 0

5 Exmple 6: Opertions with frctions Csio Shrp + + = b c + b c = 6 = b c b c = = b c b c = = b c b c = Exmple : Mixed opertions with frctions + ( + ) ( ) = ( + ) ( ) =. b c 0 Exercise A-0 Frctions Simplify ech of the following. 6 - b c - 0 d e f 6 6 Chnge ech of the following to n improper frction. b c d 6 e f 0 6 Convert ech of the following to mixed numerl. - b - c d - e 0 f - APPENDIX CALCULATOR SKILLS

6 Chnge ech of the following frctions to deciml. b c d - e f 00 Convert ech of these decimls to frction in its simplest fm. 0. b.0 c 0.00 d 0.6 e.06 f 0. 6 Simplify ech of the following. b + c + d e 0 - f + g - h 6 i j k + l m n o Noh wnts to be professionl skter. He prctises f hours ech dy. How mny hours of prctice does he do in dys? Mr Lnouri is t wk f hours ech dy. He tkes of n hour f lunch ech dy. How long does he wk in one dy? Mrs Chn is plnning slide show. Ech picture is to be shown f seconds. How mny pictures cn she show in 0 seconds? 0 Nikki hs prt-time job mowing lwns. The tble on the right shows the number of hours she wked in the lst month. Find the totl number of hours Nikki wked. b If Nikki chrges \$.0 per hour, how much did she ern in totl? Rdio sttion WAVE-FM plys minutes of music every hour. The verge song plyed on the sttion lsts minutes. About how mny songs cn be plyed in hours? Mrs Duschevin wks hours dy. She wks full dy ech dy from Mondy to Fridy nd wks hlf dy on Sturdy. How mny hours week does she wk? 0 NEW CENTURY MATHS Customer Green Cook Verbeek Thompson Burns Hours

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