hard Set 99 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [40, _] → [_, _, 9] → [10, _, 6, 3] → [_, _, 5, 1, _]

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Answer: Row4[2]=12, Row2[2]=27, Row3[1]=22, Row3[2]=18, Row5[5]=2, Row5[2]=7, Row1[1]=67, Row5[1]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [67]
  • [40,27]
  • [22,18,9]
  • [10,12,6,3]
  • [3,7,5,1,2]
Base
  • 3
  • 7
  • 5
  • 1
  • 2
TopValue
67
HiddenCells
  • {"r":3,"c":1,"v":12}
  • {"r":1,"c":1,"v":27}
  • {"r":2,"c":0,"v":22}
  • {"r":2,"c":1,"v":18}
  • {"r":4,"c":4,"v":2}
  • {"r":4,"c":1,"v":7}
  • {"r":0,"c":0,"v":67}
  • {"r":4,"c":0,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 35] → [20, 16, _] → [12, _, _, 11] → [_, _, 5, _, 8]

Show answer

Answer: Row5[1]=9, Row4[2]=8, Row5[2]=3, Row3[3]=19, Row2[1]=36, Row5[4]=3, Row1[1]=71, Row4[3]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [71]
  • [36,35]
  • [20,16,19]
  • [12,8,8,11]
  • [9,3,5,3,8]
Base
  • 9
  • 3
  • 5
  • 3
  • 8
TopValue
71
HiddenCells
  • {"r":4,"c":0,"v":9}
  • {"r":3,"c":1,"v":8}
  • {"r":4,"c":1,"v":3}
  • {"r":2,"c":2,"v":19}
  • {"r":1,"c":0,"v":36}
  • {"r":4,"c":3,"v":3}
  • {"r":0,"c":0,"v":71}
  • {"r":3,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [80] → [44, _] → [_, 19, _] → [_, 11, _, 9] → [_, _, 5, 3, _]

Show answer

Answer: Row5[1]=8, Row5[5]=6, Row5[2]=6, Row3[3]=17, Row2[2]=36, Row4[1]=14, Row3[1]=25, Row4[3]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [80]
  • [44,36]
  • [25,19,17]
  • [14,11,8,9]
  • [8,6,5,3,6]
Base
  • 8
  • 6
  • 5
  • 3
  • 6
TopValue
80
HiddenCells
  • {"r":4,"c":0,"v":8}
  • {"r":4,"c":4,"v":6}
  • {"r":4,"c":1,"v":6}
  • {"r":2,"c":2,"v":17}
  • {"r":1,"c":1,"v":36}
  • {"r":3,"c":0,"v":14}
  • {"r":2,"c":0,"v":25}
  • {"r":3,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 23, _] → [_, _, 11, 14] → [3, 7, _, 6, 8]

Show answer

Answer: Row3[3]=25, Row4[2]=12, Row2[1]=45, Row3[1]=22, Row4[1]=10, Row1[1]=93, Row2[2]=48, Row5[3]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [93]
  • [45,48]
  • [22,23,25]
  • [10,12,11,14]
  • [3,7,5,6,8]
Base
  • 3
  • 7
  • 5
  • 6
  • 8
TopValue
93
HiddenCells
  • {"r":2,"c":2,"v":25}
  • {"r":3,"c":1,"v":12}
  • {"r":1,"c":0,"v":45}
  • {"r":2,"c":0,"v":22}
  • {"r":3,"c":0,"v":10}
  • {"r":0,"c":0,"v":93}
  • {"r":1,"c":1,"v":48}
  • {"r":4,"c":2,"v":5}