hard Set 85 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [91] → [50, _] → [_, _, _] → [_, _, _, 8] → [_, 7, 4, 7, 1]

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Answer: Row2[2]=41, Row3[3]=19, Row4[1]=17, Row3[1]=28, Row3[2]=22, Row4[3]=11, Row4[2]=11, Row5[1]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [91]
  • [50,41]
  • [28,22,19]
  • [17,11,11,8]
  • [10,7,4,7,1]
Base
  • 10
  • 7
  • 4
  • 7
  • 1
TopValue
91
HiddenCells
  • {"r":1,"c":1,"v":41}
  • {"r":2,"c":2,"v":19}
  • {"r":3,"c":0,"v":17}
  • {"r":2,"c":0,"v":28}
  • {"r":2,"c":1,"v":22}
  • {"r":3,"c":2,"v":11}
  • {"r":3,"c":1,"v":11}
  • {"r":4,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, _] → [_, 13, 16, 16] → [1, _, 8, 8, 8]

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Answer: Row3[3]=32, Row3[2]=29, Row5[2]=5, Row4[1]=6, Row2[1]=48, Row2[2]=61, Row3[1]=19, Row1[1]=109

SubType
number-pyramid
Difficulty
hard
Levels
  • [109]
  • [48,61]
  • [19,29,32]
  • [6,13,16,16]
  • [1,5,8,8,8]
Base
  • 1
  • 5
  • 8
  • 8
  • 8
TopValue
109
HiddenCells
  • {"r":2,"c":2,"v":32}
  • {"r":2,"c":1,"v":29}
  • {"r":4,"c":1,"v":5}
  • {"r":3,"c":0,"v":6}
  • {"r":1,"c":0,"v":48}
  • {"r":1,"c":1,"v":61}
  • {"r":2,"c":0,"v":19}
  • {"r":0,"c":0,"v":109}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [65, _] → [35, _, _] → [20, _, _, 13] → [10, _, 5, 10, _]

Show answer

Answer: Row1[1]=123, Row3[3]=28, Row3[2]=30, Row2[2]=58, Row5[5]=3, Row4[3]=15, Row5[2]=10, Row4[2]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [123]
  • [65,58]
  • [35,30,28]
  • [20,15,15,13]
  • [10,10,5,10,3]
Base
  • 10
  • 10
  • 5
  • 10
  • 3
TopValue
123
HiddenCells
  • {"r":0,"c":0,"v":123}
  • {"r":2,"c":2,"v":28}
  • {"r":2,"c":1,"v":30}
  • {"r":1,"c":1,"v":58}
  • {"r":4,"c":4,"v":3}
  • {"r":3,"c":2,"v":15}
  • {"r":4,"c":1,"v":10}
  • {"r":3,"c":1,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [25, 40] → [_, _, _] → [5, 5, _, _] → [3, 2, _, _, 8]

Show answer

Answer: Row5[4]=7, Row3[3]=25, Row5[3]=3, Row1[1]=65, Row4[3]=10, Row3[1]=10, Row3[2]=15, Row4[4]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [65]
  • [25,40]
  • [10,15,25]
  • [5,5,10,15]
  • [3,2,3,7,8]
Base
  • 3
  • 2
  • 3
  • 7
  • 8
TopValue
65
HiddenCells
  • {"r":4,"c":3,"v":7}
  • {"r":2,"c":2,"v":25}
  • {"r":4,"c":2,"v":3}
  • {"r":0,"c":0,"v":65}
  • {"r":3,"c":2,"v":10}
  • {"r":2,"c":0,"v":10}
  • {"r":2,"c":1,"v":15}
  • {"r":3,"c":3,"v":15}