medium Set 8 Form Exercise

Start at 9. Follow the chain: ×5, ×4, -15, +2. What is the result after step 3?

Show answer

Answer: 165

StartNumber
9
Steps
  • {"op":"\u00d7","value":5}
  • {"op":"\u00d7","value":4}
  • {"op":"-","value":15}
  • {"op":"+","value":2}
Values
  • 9
  • 45
  • 180
  • 165
  • 167
MissingStep
2

Start at 7. Follow the chain: ×2, +13, +6, -12. What is the result after step 1?

Show answer

Answer: 14

StartNumber
7
Steps
  • {"op":"\u00d7","value":2}
  • {"op":"+","value":13}
  • {"op":"+","value":6}
  • {"op":"-","value":12}
Values
  • 7
  • 14
  • 27
  • 33
  • 21
MissingStep
0

Start at 2. Follow the chain: ×5, +11, +14, -1. What is the result after step 1?

Show answer

Answer: 10

StartNumber
2
Steps
  • {"op":"\u00d7","value":5}
  • {"op":"+","value":11}
  • {"op":"+","value":14}
  • {"op":"-","value":1}
Values
  • 2
  • 10
  • 21
  • 35
  • 34
MissingStep
0

Start at 22. Follow the chain: +7, +12, +15, +5. What is the result after step 2?

Show answer

Answer: 41

StartNumber
22
Steps
  • {"op":"+","value":7}
  • {"op":"+","value":12}
  • {"op":"+","value":15}
  • {"op":"+","value":5}
Values
  • 22
  • 29
  • 41
  • 56
  • 61
MissingStep
1

Start at 23. Follow the chain: +10, -15, +11, ×4. What is the result after step 1?

Show answer

Answer: 33

StartNumber
23
Steps
  • {"op":"+","value":10}
  • {"op":"-","value":15}
  • {"op":"+","value":11}
  • {"op":"\u00d7","value":4}
Values
  • 23
  • 33
  • 18
  • 29
  • 116
MissingStep
0

Start at 23. Follow the chain: +5, +6, +8, +7. What is the result after step 1?

Show answer

Answer: 28

StartNumber
23
Steps
  • {"op":"+","value":5}
  • {"op":"+","value":6}
  • {"op":"+","value":8}
  • {"op":"+","value":7}
Values
  • 23
  • 28
  • 34
  • 42
  • 49
MissingStep
0

Start at 5. Follow the chain: ×3, -12, +13, -4. What is the result after step 3?

Show answer

Answer: 16

StartNumber
5
Steps
  • {"op":"\u00d7","value":3}
  • {"op":"-","value":12}
  • {"op":"+","value":13}
  • {"op":"-","value":4}
Values
  • 5
  • 15
  • 3
  • 16
  • 12
MissingStep
2

Start at 8. Follow the chain: -5, +5, +3, +4. What is the result after step 4?

Show answer

Answer: 15

StartNumber
8
Steps
  • {"op":"-","value":5}
  • {"op":"+","value":5}
  • {"op":"+","value":3}
  • {"op":"+","value":4}
Values
  • 8
  • 3
  • 8
  • 11
  • 15
MissingStep
3