hard Set 29 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 21, 18] → [15, 12, _, _] → [_, 9, 3, _, 3]

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Answer: Row3[1]=27, Row5[1]=6, Row5[4]=6, Row1[1]=87, Row2[1]=48, Row4[4]=9, Row2[2]=39, Row4[3]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [87]
  • [48,39]
  • [27,21,18]
  • [15,12,9,9]
  • [6,9,3,6,3]
Base
  • 6
  • 9
  • 3
  • 6
  • 3
TopValue
87
HiddenCells
  • {"r":2,"c":0,"v":27}
  • {"r":4,"c":0,"v":6}
  • {"r":4,"c":3,"v":6}
  • {"r":0,"c":0,"v":87}
  • {"r":1,"c":0,"v":48}
  • {"r":3,"c":3,"v":9}
  • {"r":1,"c":1,"v":39}
  • {"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): [_] → [_, 77] → [34, 39, 38] → [_, 19, _, _] → [6, _, 10, _, _]

Show answer

Answer: Row2[1]=73, Row4[1]=15, Row1[1]=150, Row5[5]=8, Row4[4]=18, Row5[4]=10, Row5[2]=9, Row4[3]=20

SubType
number-pyramid
Difficulty
hard
Levels
  • [150]
  • [73,77]
  • [34,39,38]
  • [15,19,20,18]
  • [6,9,10,10,8]
Base
  • 6
  • 9
  • 10
  • 10
  • 8
TopValue
150
HiddenCells
  • {"r":1,"c":0,"v":73}
  • {"r":3,"c":0,"v":15}
  • {"r":0,"c":0,"v":150}
  • {"r":4,"c":4,"v":8}
  • {"r":3,"c":3,"v":18}
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":1,"v":9}
  • {"r":3,"c":2,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [49, _] → [24, 25, _] → [11, 13, 12, _] → [2, _, _, _, _]

Show answer

Answer: Row1[1]=98, Row5[3]=4, Row5[2]=9, Row2[2]=49, Row3[3]=24, Row5[5]=4, Row5[4]=8, Row4[4]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [98]
  • [49,49]
  • [24,25,24]
  • [11,13,12,12]
  • [2,9,4,8,4]
Base
  • 2
  • 9
  • 4
  • 8
  • 4
TopValue
98
HiddenCells
  • {"r":0,"c":0,"v":98}
  • {"r":4,"c":2,"v":4}
  • {"r":4,"c":1,"v":9}
  • {"r":1,"c":1,"v":49}
  • {"r":2,"c":2,"v":24}
  • {"r":4,"c":4,"v":4}
  • {"r":4,"c":3,"v":8}
  • {"r":3,"c":3,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [65] → [37, _] → [21, _, _] → [_, 9, _, _] → [_, 3, 6, 1, _]

Show answer

Answer: Row5[5]=4, Row5[1]=9, Row3[2]=16, Row4[3]=7, Row2[2]=28, Row4[1]=12, Row4[4]=5, Row3[3]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [65]
  • [37,28]
  • [21,16,12]
  • [12,9,7,5]
  • [9,3,6,1,4]
Base
  • 9
  • 3
  • 6
  • 1
  • 4
TopValue
65
HiddenCells
  • {"r":4,"c":4,"v":4}
  • {"r":4,"c":0,"v":9}
  • {"r":2,"c":1,"v":16}
  • {"r":3,"c":2,"v":7}
  • {"r":1,"c":1,"v":28}
  • {"r":3,"c":0,"v":12}
  • {"r":3,"c":3,"v":5}
  • {"r":2,"c":2,"v":12}