hard Set 10 Form Exercise

Start at 20. Follow the path: ÷2, +15, ÷5, ×2. What is the final answer?

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Answer: 10

StartValue
20
Steps
  • {"op":"\u00f7","value":2,"result":10}
  • {"op":"+","value":15,"result":25}
  • {"op":"\u00f7","value":5,"result":5}
  • {"op":"\u00d7","value":2,"result":10}
Forks
  • {"correct":10,"wrong":5,"options":[5,10],"correctIndex":1,"op":"\u00f7","value":2}
  • {"correct":25,"wrong":22,"options":[22,25],"correctIndex":1,"op":"+","value":15}
  • {"correct":5,"wrong":10,"options":[5,10],"correctIndex":0,"op":"\u00f7","value":5}
  • {"correct":10,"wrong":5,"options":[10,5],"correctIndex":0,"op":"\u00d7","value":2}

Start at 21. Follow the path: +20, +17, +17, ×2. What is the final answer?

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Answer: 150

StartValue
21
Steps
  • {"op":"+","value":20,"result":41}
  • {"op":"+","value":17,"result":58}
  • {"op":"+","value":17,"result":75}
  • {"op":"\u00d7","value":2,"result":150}
Forks
  • {"correct":41,"wrong":38,"options":[41,38],"correctIndex":0,"op":"+","value":20}
  • {"correct":58,"wrong":57,"options":[57,58],"correctIndex":1,"op":"+","value":17}
  • {"correct":75,"wrong":73,"options":[73,75],"correctIndex":1,"op":"+","value":17}
  • {"correct":150,"wrong":154,"options":[154,150],"correctIndex":1,"op":"\u00d7","value":2}

Start at 37. Follow the path: +3, ÷5, +2, ÷5. What is the final answer?

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Answer: 2

StartValue
37
Steps
  • {"op":"+","value":3,"result":40}
  • {"op":"\u00f7","value":5,"result":8}
  • {"op":"+","value":2,"result":10}
  • {"op":"\u00f7","value":5,"result":2}
Forks
  • {"correct":40,"wrong":39,"options":[39,40],"correctIndex":1,"op":"+","value":3}
  • {"correct":8,"wrong":10,"options":[10,8],"correctIndex":1,"op":"\u00f7","value":5}
  • {"correct":10,"wrong":12,"options":[10,12],"correctIndex":0,"op":"+","value":2}
  • {"correct":2,"wrong":1,"options":[1,2],"correctIndex":1,"op":"\u00f7","value":5}

Start at 31. Follow the path: -11, ×4, +18, ×2. What is the final answer?

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Answer: 196

StartValue
31
Steps
  • {"op":"-","value":11,"result":20}
  • {"op":"\u00d7","value":4,"result":80}
  • {"op":"+","value":18,"result":98}
  • {"op":"\u00d7","value":2,"result":196}
Forks
  • {"correct":20,"wrong":21,"options":[20,21],"correctIndex":0,"op":"-","value":11}
  • {"correct":80,"wrong":82,"options":[82,80],"correctIndex":1,"op":"\u00d7","value":4}
  • {"correct":98,"wrong":99,"options":[99,98],"correctIndex":1,"op":"+","value":18}
  • {"correct":196,"wrong":199,"options":[196,199],"correctIndex":0,"op":"\u00d7","value":2}

Start at 12. Follow the path: -2, ×2, ÷4, -2. What is the final answer?

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Answer: 3

StartValue
12
Steps
  • {"op":"-","value":2,"result":10}
  • {"op":"\u00d7","value":2,"result":20}
  • {"op":"\u00f7","value":4,"result":5}
  • {"op":"-","value":2,"result":3}
Forks
  • {"correct":10,"wrong":9,"options":[10,9],"correctIndex":0,"op":"-","value":2}
  • {"correct":20,"wrong":16,"options":[20,16],"correctIndex":0,"op":"\u00d7","value":2}
  • {"correct":5,"wrong":7,"options":[5,7],"correctIndex":0,"op":"\u00f7","value":4}
  • {"correct":3,"wrong":1,"options":[1,3],"correctIndex":1,"op":"-","value":2}

Start at 5. Follow the path: ×2, ÷2, ÷5, +10. What is the final answer?

Show answer

Answer: 11

StartValue
5
Steps
  • {"op":"\u00d7","value":2,"result":10}
  • {"op":"\u00f7","value":2,"result":5}
  • {"op":"\u00f7","value":5,"result":1}
  • {"op":"+","value":10,"result":11}
Forks
  • {"correct":10,"wrong":11,"options":[11,10],"correctIndex":1,"op":"\u00d7","value":2}
  • {"correct":5,"wrong":4,"options":[5,4],"correctIndex":0,"op":"\u00f7","value":2}
  • {"correct":1,"wrong":1,"options":[1,1],"correctIndex":0,"op":"\u00f7","value":5}
  • {"correct":11,"wrong":8,"options":[8,11],"correctIndex":1,"op":"+","value":10}

Start at 36. Follow the path: -16, +12, -8, ÷8. What is the final answer?

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Answer: 3

StartValue
36
Steps
  • {"op":"-","value":16,"result":20}
  • {"op":"+","value":12,"result":32}
  • {"op":"-","value":8,"result":24}
  • {"op":"\u00f7","value":8,"result":3}
Forks
  • {"correct":20,"wrong":24,"options":[20,24],"correctIndex":0,"op":"-","value":16}
  • {"correct":32,"wrong":37,"options":[37,32],"correctIndex":1,"op":"+","value":12}
  • {"correct":24,"wrong":21,"options":[24,21],"correctIndex":0,"op":"-","value":8}
  • {"correct":3,"wrong":1,"options":[1,3],"correctIndex":1,"op":"\u00f7","value":8}

Start at 5. Follow the path: ÷5, +5, -5, +9. What is the final answer?

Show answer

Answer: 10

StartValue
5
Steps
  • {"op":"\u00f7","value":5,"result":1}
  • {"op":"+","value":5,"result":6}
  • {"op":"-","value":5,"result":1}
  • {"op":"+","value":9,"result":10}
Forks
  • {"correct":1,"wrong":1,"options":[1,1],"correctIndex":1,"op":"\u00f7","value":5}
  • {"correct":6,"wrong":8,"options":[6,8],"correctIndex":0,"op":"+","value":5}
  • {"correct":1,"wrong":1,"options":[1,1],"correctIndex":1,"op":"-","value":5}
  • {"correct":10,"wrong":8,"options":[10,8],"correctIndex":0,"op":"+","value":9}