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1、I Single- Choice Questions:(20)1. If e=3 and f=4, then 2ef2 equals_A.48 B.96 C.288 D.5762. If (x-3)(x+2)=0 then x=_A. -3/2 B. -2 C. 0 D. 33. A car uses 500ml to travel 5.5km. How many liters would the car use to travel 16.5km?_A. 1900ml B. 2000ml C. 1500ml D. no of these4. A plane flying south turne
2、d anti-clockwise through 1350. In what direction is it now flying? _A. NW B. SW C. NE D. SE5. In a class of 48 students, 36 are girls. Then fraction of boys in the class is _A. 3/4 B. 1/4 C.1/3 D. 2/36. Tina thinks of a number, add 3 to it, and then square the result, I get 25. The equation represen
3、ted by this expression is_A. n2 +32=25 B. n2+3=25 C. n+32=25 D. (n+3)2=257. The first three terms of this sequence :first term 1 ,term-to-term rule “add 5” is_A.1, 6,10 B. 1,6,11 C. 1,5,10 D. 1,5,118.Which is greater(20 miles and 20 km)_A.20 miles is greater B. 20 km is greater C. they are equal D.
4、no of these9. Which of these computation gives an answer that is different from the other three_A.32 B. 81 C. 42 D. 10.Which of the shape blow has two lines of symmetry_A. B. C. D. II Fill the blanks blow: (20)1. 6.7m_670mm (use the sign “”, “” or “=” )2. Two angles in an isosceles triangle measure
5、400, what is the size of the third angles?_ this type of angle we call_3. 6.24+8.35=_4. Work out the value of the expression:x+7 when x=-12_5. If 100m of fence enclose a square plot of 625m2, how large a square will 200m of fence enclose?_6. The chef drew a bar graph to show where the diners in his
6、restaurant come from. What percentage was from New Zealand? _%_7. Find the LCM of 90 and 140_ 8. First term is 20 ,term to term rule is “subtract 4” , so the second term is_ 9. Work out the value of the expression 2x+4y when x=5,y=-2_ 10. Convert this distances into miles: 112km=_III Write down the
7、answer and process(60)1. F ind the unknown angles x0 below (6) A. B. C. x=_ x =_ x = _2.angi pays 10% of the cost of a $120 computer game, (6)A. How much does he paid? _B. The rest of the money will be paid monthly and each month will be same amount he had paid. How many months will he pay off? _C.
8、He delivers Newspaper to make money, Hourly rate is $6, how many hours he needs work totally to pay the left amount of money? _3.F inding rules for sequences (6) Pattern 1 pattern 2 pattern 3 4. Work these out (8) (1) (2) (3) (4) 5. Use equivalent fractions to write these fractions in order of size
9、,smallest first. (8) (1) (2) (3) (4) 6. For each triangle ,write down: I the number of lines of symmetry (8) II the order of rotational symmetry A B C D Equilateral triangle isosceles triangle scalene triangle right-angled Isosceles triangle7.Here are the heights of 20 adults , measured to the neare
10、stentimetre.(10) 161 193 180 167 151 188 170 171 159 179 182 166 177 185 164 175 155 173 180 160a. Copy and complete the grouped frequency table.b. How many of the adults are more than 180 cm tallc. How many of the adults are more than 180 cm tall?d. How many of the adults are less than or equal to 180cm tall?Explain how you use the grouped frequency table to work out your answer.Height ,h (cm)TallyFrequency150h160160h170
