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Maths
Securing place value to 100 and applying to addition and subtraction

Starter quiz

  • Which one is not a complement to 100 ?
    • 35 + 65
    • 45 + 55
    • 55 + 55  ✓
  • What is the total of 17 + 83 ?
    • '100' ✓
  • Match the compliments to 100.
    • 15
      ⇔
      85 ✓
    • 27
      ⇔
      73 ✓
    • 39
      ⇔
      61 ✓
    • 41
      ⇔
      59 ✓
    • 53
      ⇔
      47 ✓
  • What do you add to 69 to make 100 ?
    • '31' ✓
  • There are 100 cakes to sell at the school fair. 24 cakes have already been sold. How many are left to sell?
    • '76' ✓
  • Complete the sentence. When 2-digit numbers are complements to 100, the ones digits total ______ and the tens digits total 90
    • '10' ✓
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