hard Set 20 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 60] → [26, _, _] → [9, 17, _, _] → [1, 8, _, _, 10]

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Answer: Row5[4]=5, Row4[4]=15, Row2[1]=57, Row1[1]=117, Row3[3]=29, Row5[3]=9, Row4[3]=14, Row3[2]=31

SubType
number-pyramid
Difficulty
hard
Levels
  • [117]
  • [57,60]
  • [26,31,29]
  • [9,17,14,15]
  • [1,8,9,5,10]
Base
  • 1
  • 8
  • 9
  • 5
  • 10
TopValue
117
HiddenCells
  • {"r":4,"c":3,"v":5}
  • {"r":3,"c":3,"v":15}
  • {"r":1,"c":0,"v":57}
  • {"r":0,"c":0,"v":117}
  • {"r":2,"c":2,"v":29}
  • {"r":4,"c":2,"v":9}
  • {"r":3,"c":2,"v":14}
  • {"r":2,"c":1,"v":31}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [128] → [_, _] → [_, 32, _] → [15, 15, 17, _] → [_, 5, _, _, 10]

Show answer

Answer: Row5[3]=10, Row2[2]=66, Row3[1]=30, Row5[1]=10, Row4[4]=17, Row3[3]=34, Row2[1]=62, Row5[4]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [128]
  • [62,66]
  • [30,32,34]
  • [15,15,17,17]
  • [10,5,10,7,10]
Base
  • 10
  • 5
  • 10
  • 7
  • 10
TopValue
128
HiddenCells
  • {"r":4,"c":2,"v":10}
  • {"r":1,"c":1,"v":66}
  • {"r":2,"c":0,"v":30}
  • {"r":4,"c":0,"v":10}
  • {"r":3,"c":3,"v":17}
  • {"r":2,"c":2,"v":34}
  • {"r":1,"c":0,"v":62}
  • {"r":4,"c":3,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [55, 56] → [_, 28, 28] → [14, _, _, _] → [_, _, 6, 9, _]

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Answer: Row1[1]=111, Row3[1]=27, Row4[2]=13, Row5[1]=7, Row5[2]=7, Row4[4]=13, Row4[3]=15, Row5[5]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [111]
  • [55,56]
  • [27,28,28]
  • [14,13,15,13]
  • [7,7,6,9,4]
Base
  • 7
  • 7
  • 6
  • 9
  • 4
TopValue
111
HiddenCells
  • {"r":0,"c":0,"v":111}
  • {"r":2,"c":0,"v":27}
  • {"r":3,"c":1,"v":13}
  • {"r":4,"c":0,"v":7}
  • {"r":4,"c":1,"v":7}
  • {"r":3,"c":3,"v":13}
  • {"r":3,"c":2,"v":15}
  • {"r":4,"c":4,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [81] → [_, _] → [23, 19, _] → [_, _, _, _] → [5, 7, 4, _, 8]

Show answer

Answer: Row2[2]=39, Row4[1]=12, Row4[3]=8, Row4[4]=12, Row4[2]=11, Row3[3]=20, Row2[1]=42, Row5[4]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [42,39]
  • [23,19,20]
  • [12,11,8,12]
  • [5,7,4,4,8]
Base
  • 5
  • 7
  • 4
  • 4
  • 8
TopValue
81
HiddenCells
  • {"r":1,"c":1,"v":39}
  • {"r":3,"c":0,"v":12}
  • {"r":3,"c":2,"v":8}
  • {"r":3,"c":3,"v":12}
  • {"r":3,"c":1,"v":11}
  • {"r":2,"c":2,"v":20}
  • {"r":1,"c":0,"v":42}
  • {"r":4,"c":3,"v":4}