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现在参加这个测试
2-6 Test Preparation Part A
  • 1. 43•44
A) 412
B) 16
C) 64
D) 47
  • 2. 83•8
A) 83
B) 16
C) 84
D) 82
  • 3. 56•5-2
A) 5-12
B) 54
C) 5-10
D) 25
  • 4. X3 • X2 • X
A) X5
B) 6X
C) X + X5
D) X6
  • 5. H • H • H • H
A) H•H4
B) H5
C) 4H
D) H4
  • 6. (1/3)5 • (1/3)3
A) (1/3)2
B) (1/3)15
C) (1/3)
D) (1/3)8
  • 7. 86/82
A) 88
B) 64
C) 84
D) 812
  • 8. (-2)10/(-2)2
A) (-2)20
B) (-2)8
C) (-2)12
D) -64
  • 9. (3X4) • (2X2)
A) 5X2
B) 6X8
C) 5X6
D) 6X6
  • 10. X5Y2 • X2Y5
A) X2Y3
B) X12Y12
C) X7Y7
D) X10Y10
  • 11. 3H2Y2 • -2H3
A) -6H5Y2
B) -6H6
C) -5H5Y2
D) 6H5Y2
  • 12. 6,000,000
A) 6 X 106
B) 6 X 105
C) 6 X 10-6
D) 6 X 107
  • 13. 565,000,000
A) 5.65 X 10-8
B) 5.65 X 107
C) 56.5 X 107
D) 5.65 X 108
  • 14. .007
A) 7 X 10-2
B) 7 X 103
C) 7 X 10-3
D) 7 X 10-4
  • 15. .00085
A) 8.5 X 10-4
B) 8.5 X 10-3
C) 8.5 X 10-5
D) 8.5 X 105
  • 16. 8 x 105
A) 800,000,000
B) 8,000,000
C) 800,000
D) 80,000
  • 17. 2.32 x 106
A) 23,200,000
B) 2,320,000
C) 23,200
D) 232,000
  • 18. 8 x 10-4
A) .0008
B) .000008
C) .008
D) .00008
  • 19. 5.5 x 10-5
A) .0000055
B) .0055
C) .000055
D) .00055
  • 20. A right triangle has the following side lenghts: A = 8, and B = 11. Find the lenght of side C (the hypotenuse)??
A) About 13.5
B) About 9.4
C) About 12.1
D) About 16.9
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Math 7 exam - end of year part 2
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