medium Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [30] → [11, 19] → [3, _, 11] → [1, _, _, _]

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Answer: Row4[3]=6, Row3[2]=8, Row4[4]=5, Row4[2]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [30]
  • [11,19]
  • [3,8,11]
  • [1,2,6,5]
Base
  • 1
  • 2
  • 6
  • 5
TopValue
30
HiddenCells
  • {"r":3,"c":2,"v":6}
  • {"r":2,"c":1,"v":8}
  • {"r":3,"c":3,"v":5}
  • {"r":3,"c":1,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [40] → [_, 20] → [12, 8, _] → [_, _, 5, 7]

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Answer: Row4[1]=9, Row4[2]=3, Row2[1]=20, Row3[3]=12

SubType
number-pyramid
Difficulty
medium
Levels
  • [40]
  • [20,20]
  • [12,8,12]
  • [9,3,5,7]
Base
  • 9
  • 3
  • 5
  • 7
TopValue
40
HiddenCells
  • {"r":3,"c":0,"v":9}
  • {"r":3,"c":1,"v":3}
  • {"r":1,"c":0,"v":20}
  • {"r":2,"c":2,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [55] → [23, 32] → [_, 12, _] → [_, _, 10, 10]

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Answer: Row4[1]=9, Row4[2]=2, Row3[3]=20, Row3[1]=11

SubType
number-pyramid
Difficulty
medium
Levels
  • [55]
  • [23,32]
  • [11,12,20]
  • [9,2,10,10]
Base
  • 9
  • 2
  • 10
  • 10
TopValue
55
HiddenCells
  • {"r":3,"c":0,"v":9}
  • {"r":3,"c":1,"v":2}
  • {"r":2,"c":2,"v":20}
  • {"r":2,"c":0,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [50] → [21, 29] → [_, 11, _] → [9, 1, _, _]

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Answer: Row3[3]=18, Row4[3]=10, Row3[1]=10, Row4[4]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [50]
  • [21,29]
  • [10,11,18]
  • [9,1,10,8]
Base
  • 9
  • 1
  • 10
  • 8
TopValue
50
HiddenCells
  • {"r":2,"c":2,"v":18}
  • {"r":3,"c":2,"v":10}
  • {"r":2,"c":0,"v":10}
  • {"r":3,"c":3,"v":8}