hard Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 22, 14] → [12, _, 9, _] → [5, 7, _, 3, _]

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Answer: Row1[1]=83, Row4[4]=5, Row5[5]=2, Row2[1]=47, Row5[3]=6, Row4[2]=13, Row3[1]=25, Row2[2]=36

SubType
number-pyramid
Difficulty
hard
Levels
  • [83]
  • [47,36]
  • [25,22,14]
  • [12,13,9,5]
  • [5,7,6,3,2]
Base
  • 5
  • 7
  • 6
  • 3
  • 2
TopValue
83
HiddenCells
  • {"r":0,"c":0,"v":83}
  • {"r":3,"c":3,"v":5}
  • {"r":4,"c":4,"v":2}
  • {"r":1,"c":0,"v":47}
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":1,"v":13}
  • {"r":2,"c":0,"v":25}
  • {"r":1,"c":1,"v":36}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [67, _] → [_, 31, _] → [17, _, _, _] → [8, 9, _, 2, 7]

Show answer

Answer: Row4[4]=9, Row5[3]=10, Row4[3]=12, Row4[2]=19, Row3[3]=21, Row2[2]=52, Row1[1]=119, Row3[1]=36

SubType
number-pyramid
Difficulty
hard
Levels
  • [119]
  • [67,52]
  • [36,31,21]
  • [17,19,12,9]
  • [8,9,10,2,7]
Base
  • 8
  • 9
  • 10
  • 2
  • 7
TopValue
119
HiddenCells
  • {"r":3,"c":3,"v":9}
  • {"r":4,"c":2,"v":10}
  • {"r":3,"c":2,"v":12}
  • {"r":3,"c":1,"v":19}
  • {"r":2,"c":2,"v":21}
  • {"r":1,"c":1,"v":52}
  • {"r":0,"c":0,"v":119}
  • {"r":2,"c":0,"v":36}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [71, _] → [_, _, 23] → [_, 20, _, 8] → [6, 10, 10, _, _]

Show answer

Answer: Row3[1]=36, Row5[4]=5, Row5[5]=3, Row3[2]=35, Row1[1]=129, Row4[1]=16, Row4[3]=15, Row2[2]=58

SubType
number-pyramid
Difficulty
hard
Levels
  • [129]
  • [71,58]
  • [36,35,23]
  • [16,20,15,8]
  • [6,10,10,5,3]
Base
  • 6
  • 10
  • 10
  • 5
  • 3
TopValue
129
HiddenCells
  • {"r":2,"c":0,"v":36}
  • {"r":4,"c":3,"v":5}
  • {"r":4,"c":4,"v":3}
  • {"r":2,"c":1,"v":35}
  • {"r":0,"c":0,"v":129}
  • {"r":3,"c":0,"v":16}
  • {"r":3,"c":2,"v":15}
  • {"r":1,"c":1,"v":58}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [26, _] → [_, 9, 15] → [_, 5, _, 11] → [8, _, _, _, 8]

Show answer

Answer: Row4[3]=4, Row5[3]=1, Row5[4]=3, Row5[2]=4, Row1[1]=50, Row3[1]=17, Row4[1]=12, Row2[2]=24

SubType
number-pyramid
Difficulty
hard
Levels
  • [50]
  • [26,24]
  • [17,9,15]
  • [12,5,4,11]
  • [8,4,1,3,8]
Base
  • 8
  • 4
  • 1
  • 3
  • 8
TopValue
50
HiddenCells
  • {"r":3,"c":2,"v":4}
  • {"r":4,"c":2,"v":1}
  • {"r":4,"c":3,"v":3}
  • {"r":4,"c":1,"v":4}
  • {"r":0,"c":0,"v":50}
  • {"r":2,"c":0,"v":17}
  • {"r":3,"c":0,"v":12}
  • {"r":1,"c":1,"v":24}