Верно ли выполнены действия?

• Группы
  • Да
  • Нет
• Варианты
  • 6,42 ⋅ 10 = 64,2
  • 0,17⋅ 10 = 17
  • 0,17 ⋅ 10 = 1,7
  • 6,42⋅ 10 = 642
  • 0,1 ⋅ 10 = 1
  • 3,8 ⋅ 100 = 380
  • 0,1 ⋅ 10 = 10
  • 3,8 ⋅ 100 = 3,80
  • 9,387 ⋅ 100 = 938,7
  • 9,387 ⋅ 100 = 93,87
  • 0,1 ⋅ 100 = 10
  • 0,1 ⋅ 100 = 100
  • 6,3 ⋅ 1000 = 630
  • 6,3 ⋅ 1000 = 6300
  • 0,007 ⋅ 10000 = 70
  • 0,007 ⋅ 10000 = 700
  • 0,102 ⋅ 10000 = 1020
  • 0,102 ⋅ 10000 = 10200
  • 45,49 ⋅ 1000 =45490
  • 45,49 ⋅ 1000 =4549