IGCSE数学样题May-June 2010_2(6)

IGCSE数学样题May-June 2010_2

12 (a)

(b) Simplify

7-2

(i) p × p ,

(ii) m3 ÷ m7.

13 (a) Work out

14 Solve the simultaneous equations.

127

For Examiner's Use

= 3x .

Write down the value of x.

Answer(a) x =

[1]

Answer(b)(i)

[1]

Answer(b)(ii)

[1]

0.68+2.57×1.76

63

.

Write down all the figures from your calculator display.

Answer(a)

(b) Write your answer to part (a) in standard form correct to 3 significant figures.

Answer(b)

[1]

[2]

3x 2y = 15 2x + y = 17

Answer x =

y =

[3]

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