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13

Q1. If the expanded form of a number is 2 × 104 + 3 × 102 + 5 × 101 + 7, then the number is

  • 23057
  • 23570
  • 20357
  • 25307
Q2. 36 =

  • 3x3x3x3
  • 6x6x6
  • 3x3x3x3x3x3
  • 3x3x3x3x3
Q3. 6561 in exponent notation is :

  • 38
  • 48
  • 316
  • 416
Q4. a × a × a × a × y × y × y × y × z × z can be written as

  • a4y4z2
  • ayz10
  • ay8xz2
  • ayz8
Q5. 45 x 46 =

  • 415
  • 430
  • 411
  • 410

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