hard Set 89 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [43, 40] → [_, _, 18] → [_, 13, _, 9] → [_, _, _, 2, 7]

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Answer: Row4[1]=8, Row5[2]=6, Row3[2]=22, Row5[1]=2, Row1[1]=83, Row5[3]=7, Row3[1]=21, Row4[3]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [83]
  • [43,40]
  • [21,22,18]
  • [8,13,9,9]
  • [2,6,7,2,7]
Base
  • 2
  • 6
  • 7
  • 2
  • 7
TopValue
83
HiddenCells
  • {"r":3,"c":0,"v":8}
  • {"r":4,"c":1,"v":6}
  • {"r":2,"c":1,"v":22}
  • {"r":4,"c":0,"v":2}
  • {"r":0,"c":0,"v":83}
  • {"r":4,"c":2,"v":7}
  • {"r":2,"c":0,"v":21}
  • {"r":3,"c":2,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [47, 51] → [_, _, _] → [11, _, 16, 9] → [_, 1, 9, _, _]

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Answer: Row1[1]=98, Row3[2]=26, Row3[3]=25, Row3[1]=21, Row5[4]=7, Row5[5]=2, Row4[2]=10, Row5[1]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [98]
  • [47,51]
  • [21,26,25]
  • [11,10,16,9]
  • [10,1,9,7,2]
Base
  • 10
  • 1
  • 9
  • 7
  • 2
TopValue
98
HiddenCells
  • {"r":0,"c":0,"v":98}
  • {"r":2,"c":1,"v":26}
  • {"r":2,"c":2,"v":25}
  • {"r":2,"c":0,"v":21}
  • {"r":4,"c":3,"v":7}
  • {"r":4,"c":4,"v":2}
  • {"r":3,"c":1,"v":10}
  • {"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): [67] → [39, 28] → [_, _, _] → [_, 12, 3, _] → [2, _, _, 1, _]

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Answer: Row5[2]=10, Row4[1]=12, Row3[3]=13, Row5[5]=9, Row3[1]=24, Row3[2]=15, Row4[4]=10, Row5[3]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [67]
  • [39,28]
  • [24,15,13]
  • [12,12,3,10]
  • [2,10,2,1,9]
Base
  • 2
  • 10
  • 2
  • 1
  • 9
TopValue
67
HiddenCells
  • {"r":4,"c":1,"v":10}
  • {"r":3,"c":0,"v":12}
  • {"r":2,"c":2,"v":13}
  • {"r":4,"c":4,"v":9}
  • {"r":2,"c":0,"v":24}
  • {"r":2,"c":1,"v":15}
  • {"r":3,"c":3,"v":10}
  • {"r":4,"c":2,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [121] → [_, 63] → [_, _, _] → [_, 14, 17, 15] → [_, _, _, 10, 5]

Show answer

Answer: Row3[1]=27, Row2[1]=58, Row3[3]=32, Row5[2]=7, Row5[1]=6, Row4[1]=13, Row5[3]=7, Row3[2]=31

SubType
number-pyramid
Difficulty
hard
Levels
  • [121]
  • [58,63]
  • [27,31,32]
  • [13,14,17,15]
  • [6,7,7,10,5]
Base
  • 6
  • 7
  • 7
  • 10
  • 5
TopValue
121
HiddenCells
  • {"r":2,"c":0,"v":27}
  • {"r":1,"c":0,"v":58}
  • {"r":2,"c":2,"v":32}
  • {"r":4,"c":1,"v":7}
  • {"r":4,"c":0,"v":6}
  • {"r":3,"c":0,"v":13}
  • {"r":4,"c":2,"v":7}
  • {"r":2,"c":1,"v":31}