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Scenarios. Scenario 1. At the car factory they need 4 wheels to make each car. How many cars can they make with 72 wheels? Stephanie said: Nine 8’s are 72. So we double the 9 to get 18. What stage is Stephanie at?. Scenario 2. You have 37 lollies and you eat 9 of them.

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scenario 1
Scenario 1
  • At the car factory they need 4 wheels to make each car. How many cars can they make with 72 wheels?
  • Stephanie said:
  • Nine 8’s are 72.
  • So we double the 9 to get 18.
  • What stage is Stephanie at?
scenario 2
Scenario 2
  • You have 37 lollies and you eat 9 of them.
  • How many lollies do you have left?
  • Arita says:
  • The answer is 28 because four 9’s is 36, and 1 is 37. So the answer is three 9’s and 1, or 28.
  • What stage is this?
scenario 3
Scenario 3
  • There are 6 baskets. There are 24 muffins in each basket. How many muffins are there altogether?
  • Tim says:
  • It’s six 25’s and you take away 6.
  • What stage is this?
scenario 4
Scenario 4
  • In a box of 240 tomatoes there are 65% that are ripe. How many tomatoes are ripe?
  • Tom says:
  • Well 50% is 120, and 25% is 60,
  • and 12.5% is 30.
  • So it must be close to 150.
  • What stage is this?
scenario 5
Scenario 5
  • What is of 28?
  • Steve says:
  • I get 21 because half of 28 is 14 and half of 14 is 7. Then 7+7+7 = 21
  • What stage is this?
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