hard Set 9 Form Exercise

Start at 15. Follow the path: +8, +1, -15, -3. What is the final answer?

Show answer

Answer: 6

StartValue
15
Steps
  • {"op":"+","value":8,"result":23}
  • {"op":"+","value":1,"result":24}
  • {"op":"-","value":15,"result":9}
  • {"op":"-","value":3,"result":6}
Forks
  • {"correct":23,"wrong":28,"options":[23,28],"correctIndex":0,"op":"+","value":8}
  • {"correct":24,"wrong":19,"options":[24,19],"correctIndex":0,"op":"+","value":1}
  • {"correct":9,"wrong":12,"options":[9,12],"correctIndex":0,"op":"-","value":15}
  • {"correct":6,"wrong":7,"options":[6,7],"correctIndex":0,"op":"-","value":3}

Start at 40. Follow the path: ×2, -19, -2, ×2. What is the final answer?

Show answer

Answer: 118

StartValue
40
Steps
  • {"op":"\u00d7","value":2,"result":80}
  • {"op":"-","value":19,"result":61}
  • {"op":"-","value":2,"result":59}
  • {"op":"\u00d7","value":2,"result":118}
Forks
  • {"correct":80,"wrong":79,"options":[80,79],"correctIndex":0,"op":"\u00d7","value":2}
  • {"correct":61,"wrong":62,"options":[62,61],"correctIndex":1,"op":"-","value":19}
  • {"correct":59,"wrong":56,"options":[59,56],"correctIndex":0,"op":"-","value":2}
  • {"correct":118,"wrong":122,"options":[122,118],"correctIndex":1,"op":"\u00d7","value":2}

Start at 36. Follow the path: +13, ×3, -14, ÷7. What is the final answer?

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Answer: 19

StartValue
36
Steps
  • {"op":"+","value":13,"result":49}
  • {"op":"\u00d7","value":3,"result":147}
  • {"op":"-","value":14,"result":133}
  • {"op":"\u00f7","value":7,"result":19}
Forks
  • {"correct":49,"wrong":51,"options":[51,49],"correctIndex":1,"op":"+","value":13}
  • {"correct":147,"wrong":150,"options":[147,150],"correctIndex":0,"op":"\u00d7","value":3}
  • {"correct":133,"wrong":135,"options":[135,133],"correctIndex":1,"op":"-","value":14}
  • {"correct":19,"wrong":23,"options":[23,19],"correctIndex":1,"op":"\u00f7","value":7}

Start at 20. Follow the path: ×2, -18, ×4, +3. What is the final answer?

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Answer: 91

StartValue
20
Steps
  • {"op":"\u00d7","value":2,"result":40}
  • {"op":"-","value":18,"result":22}
  • {"op":"\u00d7","value":4,"result":88}
  • {"op":"+","value":3,"result":91}
Forks
  • {"correct":40,"wrong":43,"options":[40,43],"correctIndex":0,"op":"\u00d7","value":2}
  • {"correct":22,"wrong":21,"options":[22,21],"correctIndex":0,"op":"-","value":18}
  • {"correct":88,"wrong":93,"options":[93,88],"correctIndex":1,"op":"\u00d7","value":4}
  • {"correct":91,"wrong":94,"options":[94,91],"correctIndex":1,"op":"+","value":3}

Start at 32. Follow the path: ÷2, ×2, +8, +20. What is the final answer?

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Answer: 60

StartValue
32
Steps
  • {"op":"\u00f7","value":2,"result":16}
  • {"op":"\u00d7","value":2,"result":32}
  • {"op":"+","value":8,"result":40}
  • {"op":"+","value":20,"result":60}
Forks
  • {"correct":16,"wrong":19,"options":[16,19],"correctIndex":0,"op":"\u00f7","value":2}
  • {"correct":32,"wrong":34,"options":[32,34],"correctIndex":0,"op":"\u00d7","value":2}
  • {"correct":40,"wrong":37,"options":[37,40],"correctIndex":1,"op":"+","value":8}
  • {"correct":60,"wrong":62,"options":[60,62],"correctIndex":0,"op":"+","value":20}

Start at 7. Follow the path: +13, ÷2, -1, ×3. What is the final answer?

Show answer

Answer: 27

StartValue
7
Steps
  • {"op":"+","value":13,"result":20}
  • {"op":"\u00f7","value":2,"result":10}
  • {"op":"-","value":1,"result":9}
  • {"op":"\u00d7","value":3,"result":27}
Forks
  • {"correct":20,"wrong":23,"options":[20,23],"correctIndex":0,"op":"+","value":13}
  • {"correct":10,"wrong":13,"options":[13,10],"correctIndex":1,"op":"\u00f7","value":2}
  • {"correct":9,"wrong":4,"options":[4,9],"correctIndex":1,"op":"-","value":1}
  • {"correct":27,"wrong":32,"options":[27,32],"correctIndex":0,"op":"\u00d7","value":3}

Start at 13. Follow the path: -3, ×3, ÷2, ×3. What is the final answer?

Show answer

Answer: 45

StartValue
13
Steps
  • {"op":"-","value":3,"result":10}
  • {"op":"\u00d7","value":3,"result":30}
  • {"op":"\u00f7","value":2,"result":15}
  • {"op":"\u00d7","value":3,"result":45}
Forks
  • {"correct":10,"wrong":6,"options":[6,10],"correctIndex":1,"op":"-","value":3}
  • {"correct":30,"wrong":33,"options":[30,33],"correctIndex":0,"op":"\u00d7","value":3}
  • {"correct":15,"wrong":14,"options":[14,15],"correctIndex":1,"op":"\u00f7","value":2}
  • {"correct":45,"wrong":46,"options":[45,46],"correctIndex":0,"op":"\u00d7","value":3}

Start at 36. Follow the path: ×4, ÷2, ÷2, +20. What is the final answer?

Show answer

Answer: 56

StartValue
36
Steps
  • {"op":"\u00d7","value":4,"result":144}
  • {"op":"\u00f7","value":2,"result":72}
  • {"op":"\u00f7","value":2,"result":36}
  • {"op":"+","value":20,"result":56}
Forks
  • {"correct":144,"wrong":149,"options":[149,144],"correctIndex":1,"op":"\u00d7","value":4}
  • {"correct":72,"wrong":77,"options":[77,72],"correctIndex":1,"op":"\u00f7","value":2}
  • {"correct":36,"wrong":38,"options":[36,38],"correctIndex":0,"op":"\u00f7","value":2}
  • {"correct":56,"wrong":58,"options":[58,56],"correctIndex":1,"op":"+","value":20}