MathematicsFinal2011SecondaryOneSA2.pdf - 2011 Secondary School Examination Papers Secondary One Express Mathematics Paper 1 2 1 Admiralty Secondary

MathematicsFinal2011SecondaryOneSA2.pdf - 2011 Secondary...

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2011 Secondary School Examination Papers Secondary One Express Mathematics Paper 1 & 2 1 Admiralty Secondary School SA2 2 Manjusri Secondary School SA2 3 Ang Mo Kio Secondary School SA2 4 Ping Yi Secondary School SA2 5 Bukit Batok Secondary School SA2 6 Bukit Merah Secondary School SA2 7 Siglap Secondary School SA2 8 Tanjong Katong Secondary School SA2 9 Beatty Secondary School SA2 10 Clementi Town Secondary School SA2 11 Geylang Methodist Secondary School SA2 12 Jurong West Secondary School SA2 13 Shuqun Secondary School SA2 14 Whitley Secondary School SA2 15 Yuhua Secondary School SA2 16 Northland Secondary School SA2 17 Chung Cheng High School SA2
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I NAME: NO: CLASS: ADMIRAL TY SECONDARY SCHOOL Admlfalty ·1arc. .. ,.. ..... """ ,, END -OF- YEAR EXAMINATION 2011 II SUBJECT Mathematics PAPER 1 LEVEL/STREAM 1 Express DA TE 11 October 2011 TIME : 0750 - 0850 DURATION : 1 h Instructions to candidates: 1. Write your name, class and index number. 2. Answer ALL questions in th e spaces provided. 3. Use an electronic calculator to evaluate explicit numerical expressions. If the degree of accuracy is not specified in the question, and if the answer is not exact, give the answer to three significant figures. Give answers in degrees to one decimal place. For 7r, use eit h er your ca lculator value or 3. 142, unless the quest ion requires the answer in terms of :ir. 4. Essential working must be shown. Omission of essential workings and illegible handwriting will lead to loss of marks. 50 DO NO T TURN OVER T HI S PAGE UNTIL YOU AR E TO LD TO DO SO. This ques tion paper consists of!! printed pages including this cover page.
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1. Express the following in index notation, where all the bases are prime numbers. ~a) 81 x 156 (b) 22 x 440 2. Express your answers in index notation. (a) Find the square of 4 6 x 19 3 . (b) Find the cube root of the result in (a). Answer: (a) ... ..... ........ . .. ...... ... [4) (b) ............... ............ [4) Answer: (a) .. .. . .... ... . . .. . .. . .. ... . . [1] (b) ··························· [2] 2
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3. Evaluate each of the following. (a)( - 9-7)+ 13x4 (b) [SO - (28 - 32)) x 6. Answer: (a) ............ : .............. [2] (b) ..... ... .. ........ . ..... . .. [2] 4. The price of a cake of radius r cm and height h cm is given by the formula I'=__!_ r 2 h. 25 (a) Find the price for a cake of radius 35 cm and height of 11 cm. (b) If the price of cake is $240 and the height is 15 cm, calculate the radius of the cake. Answer: (a)$ ............. ... . ..... .... [2] (b) ........................ cm [3] 3
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5. Expand and simplify the following. (a) 3(2a +4b)+5(b-a), (b) 6(b-a)+4b, c+ I c - 2 (c) - +-. 3 2 Answer: (a) . . . . . . . . . . . . . . . . . . . . . . . . . . . [2] (b) ···· ····· ··············· .. . [2] ( c) . . . . . . . . . . . .. . . . . . . . . . . . . . . [2) 6. A pail was half filled with water. An amount of water equivalent to _!_ of the volume of 4 the pail was poured out. Given that the remaining volume of water in the pail is 30 0 ml, find the volume of the pail. Answer: ........... ... .......... ..... ml [2) 4
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7. Convert the following speed. Leave your answers in 3 significant figures. (a) 223 km/h to mis, (b) 16 m/s to km/h. Answer: (a) .. .................... m /s [2] (b) ... . .... .... ........ . km/h [2]
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