hard Set 1 Form Exercise

Start at 13. Follow the chain: +11, +6, ×5, ÷3, -3. What is the result after step 3?

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Answer: 150

StartNumber
13
Steps
  • {"op":"+","value":11}
  • {"op":"+","value":6}
  • {"op":"\u00d7","value":5}
  • {"op":"\u00f7","value":3}
  • {"op":"-","value":3}
Values
  • 13
  • 24
  • 30
  • 150
  • 50
  • 47
MissingStep
2

Start at 4. Follow the chain: ÷2, ×2, -1, ×5, ÷3. What is the result after step 3?

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Answer: 3

StartNumber
4
Steps
  • {"op":"\u00f7","value":2}
  • {"op":"\u00d7","value":2}
  • {"op":"-","value":1}
  • {"op":"\u00d7","value":5}
  • {"op":"\u00f7","value":3}
Values
  • 4
  • 2
  • 4
  • 3
  • 15
  • 5
MissingStep
2

Start at 38. Follow the chain: -4, +16, ÷5, ×4, ×4. What is the result after step 3?

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Answer: 10

StartNumber
38
Steps
  • {"op":"-","value":4}
  • {"op":"+","value":16}
  • {"op":"\u00f7","value":5}
  • {"op":"\u00d7","value":4}
  • {"op":"\u00d7","value":4}
Values
  • 38
  • 34
  • 50
  • 10
  • 40
  • 160
MissingStep
2

Start at 2. Follow the chain: ÷2, ×2, ×3, ÷2, -1. What is the result after step 4?

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Answer: 3

StartNumber
2
Steps
  • {"op":"\u00f7","value":2}
  • {"op":"\u00d7","value":2}
  • {"op":"\u00d7","value":3}
  • {"op":"\u00f7","value":2}
  • {"op":"-","value":1}
Values
  • 2
  • 1
  • 2
  • 6
  • 3
  • 2
MissingStep
3

Start at 16. Follow the chain: +14, ×2, -7, +11, -18. What is the result after step 4?

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Answer: 64

StartNumber
16
Steps
  • {"op":"+","value":14}
  • {"op":"\u00d7","value":2}
  • {"op":"-","value":7}
  • {"op":"+","value":11}
  • {"op":"-","value":18}
Values
  • 16
  • 30
  • 60
  • 53
  • 64
  • 46
MissingStep
3

Start at 20. Follow the chain: ×2, ÷2, ×5, -6, ÷2. What is the result after step 4?

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Answer: 94

StartNumber
20
Steps
  • {"op":"\u00d7","value":2}
  • {"op":"\u00f7","value":2}
  • {"op":"\u00d7","value":5}
  • {"op":"-","value":6}
  • {"op":"\u00f7","value":2}
Values
  • 20
  • 40
  • 20
  • 100
  • 94
  • 47
MissingStep
3

Start at 16. Follow the chain: -11, -1, ×2, -5, ÷3. What is the result after step 1?

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Answer: 5

StartNumber
16
Steps
  • {"op":"-","value":11}
  • {"op":"-","value":1}
  • {"op":"\u00d7","value":2}
  • {"op":"-","value":5}
  • {"op":"\u00f7","value":3}
Values
  • 16
  • 5
  • 4
  • 8
  • 3
  • 1
MissingStep
0

Start at 34. Follow the chain: ÷2, ×2, -19, -1, -12. What is the result after step 5?

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Answer: 2

StartNumber
34
Steps
  • {"op":"\u00f7","value":2}
  • {"op":"\u00d7","value":2}
  • {"op":"-","value":19}
  • {"op":"-","value":1}
  • {"op":"-","value":12}
Values
  • 34
  • 17
  • 34
  • 15
  • 14
  • 2
MissingStep
4