hard Set 21 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [110] → [58, 52] → [_, 27, _] → [_, _, _, _] → [_, 9, 5, _, 4]

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Answer: Row5[4]=8, Row3[3]=25, Row4[3]=13, Row5[1]=8, Row3[1]=31, Row4[4]=12, Row4[1]=17, Row4[2]=14

SubType
number-pyramid
Difficulty
hard
Levels
  • [110]
  • [58,52]
  • [31,27,25]
  • [17,14,13,12]
  • [8,9,5,8,4]
Base
  • 8
  • 9
  • 5
  • 8
  • 4
TopValue
110
HiddenCells
  • {"r":4,"c":3,"v":8}
  • {"r":2,"c":2,"v":25}
  • {"r":3,"c":2,"v":13}
  • {"r":4,"c":0,"v":8}
  • {"r":2,"c":0,"v":31}
  • {"r":3,"c":3,"v":12}
  • {"r":3,"c":0,"v":17}
  • {"r":3,"c":1,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [28, 32, 36] → [_, 14, 18, _] → [9, _, _, 9, _]

Show answer

Answer: Row2[2]=68, Row1[1]=128, Row5[5]=9, Row4[4]=18, Row5[3]=9, Row2[1]=60, Row4[1]=14, Row5[2]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [128]
  • [60,68]
  • [28,32,36]
  • [14,14,18,18]
  • [9,5,9,9,9]
Base
  • 9
  • 5
  • 9
  • 9
  • 9
TopValue
128
HiddenCells
  • {"r":1,"c":1,"v":68}
  • {"r":0,"c":0,"v":128}
  • {"r":4,"c":4,"v":9}
  • {"r":3,"c":3,"v":18}
  • {"r":4,"c":2,"v":9}
  • {"r":1,"c":0,"v":60}
  • {"r":3,"c":0,"v":14}
  • {"r":4,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [44, _] → [_, 26, 19] → [_, _, _, 6] → [1, _, _, 4, 2]

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Answer: Row2[2]=45, Row1[1]=89, Row3[1]=18, Row5[3]=9, Row4[3]=13, Row5[2]=4, Row4[1]=5, Row4[2]=13

SubType
number-pyramid
Difficulty
hard
Levels
  • [89]
  • [44,45]
  • [18,26,19]
  • [5,13,13,6]
  • [1,4,9,4,2]
Base
  • 1
  • 4
  • 9
  • 4
  • 2
TopValue
89
HiddenCells
  • {"r":1,"c":1,"v":45}
  • {"r":0,"c":0,"v":89}
  • {"r":2,"c":0,"v":18}
  • {"r":4,"c":2,"v":9}
  • {"r":3,"c":2,"v":13}
  • {"r":4,"c":1,"v":4}
  • {"r":3,"c":0,"v":5}
  • {"r":3,"c":1,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 59] → [_, _, _] → [5, _, 15, 16] → [_, 4, 9, 6, _]

Show answer

Answer: Row3[3]=31, Row4[2]=13, Row1[1]=105, Row3[1]=18, Row5[1]=1, Row3[2]=28, Row5[5]=10, Row2[1]=46

SubType
number-pyramid
Difficulty
hard
Levels
  • [105]
  • [46,59]
  • [18,28,31]
  • [5,13,15,16]
  • [1,4,9,6,10]
Base
  • 1
  • 4
  • 9
  • 6
  • 10
TopValue
105
HiddenCells
  • {"r":2,"c":2,"v":31}
  • {"r":3,"c":1,"v":13}
  • {"r":0,"c":0,"v":105}
  • {"r":2,"c":0,"v":18}
  • {"r":4,"c":0,"v":1}
  • {"r":2,"c":1,"v":28}
  • {"r":4,"c":4,"v":10}
  • {"r":1,"c":0,"v":46}