hard Set 55 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [106] → [_, _] → [_, _, 28] → [15, _, 15, _] → [_, 6, _, 10, 3]

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Answer: Row4[2]=11, Row5[1]=9, Row5[3]=5, Row3[1]=26, Row3[2]=26, Row2[1]=52, Row2[2]=54, Row4[4]=13

SubType
number-pyramid
Difficulty
hard
Levels
  • [106]
  • [52,54]
  • [26,26,28]
  • [15,11,15,13]
  • [9,6,5,10,3]
Base
  • 9
  • 6
  • 5
  • 10
  • 3
TopValue
106
HiddenCells
  • {"r":3,"c":1,"v":11}
  • {"r":4,"c":0,"v":9}
  • {"r":4,"c":2,"v":5}
  • {"r":2,"c":0,"v":26}
  • {"r":2,"c":1,"v":26}
  • {"r":1,"c":0,"v":52}
  • {"r":1,"c":1,"v":54}
  • {"r":3,"c":3,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [79] → [40, 39] → [22, _, _] → [_, _, _, 13] → [4, 8, _, _, _]

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Answer: Row4[1]=12, Row5[5]=7, Row3[3]=21, Row4[2]=10, Row4[3]=8, Row5[3]=2, Row3[2]=18, Row5[4]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [79]
  • [40,39]
  • [22,18,21]
  • [12,10,8,13]
  • [4,8,2,6,7]
Base
  • 4
  • 8
  • 2
  • 6
  • 7
TopValue
79
HiddenCells
  • {"r":3,"c":0,"v":12}
  • {"r":4,"c":4,"v":7}
  • {"r":2,"c":2,"v":21}
  • {"r":3,"c":1,"v":10}
  • {"r":3,"c":2,"v":8}
  • {"r":4,"c":2,"v":2}
  • {"r":2,"c":1,"v":18}
  • {"r":4,"c":3,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [80] → [_, 35] → [_, 20, 15] → [_, 13, _, _] → [_, _, _, 1, 7]

Show answer

Answer: Row4[3]=7, Row5[3]=6, Row4[1]=12, Row3[1]=25, Row2[1]=45, Row5[1]=5, Row4[4]=8, Row5[2]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [80]
  • [45,35]
  • [25,20,15]
  • [12,13,7,8]
  • [5,7,6,1,7]
Base
  • 5
  • 7
  • 6
  • 1
  • 7
TopValue
80
HiddenCells
  • {"r":3,"c":2,"v":7}
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":0,"v":12}
  • {"r":2,"c":0,"v":25}
  • {"r":1,"c":0,"v":45}
  • {"r":4,"c":0,"v":5}
  • {"r":3,"c":3,"v":8}
  • {"r":4,"c":1,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [29, 41] → [_, 16, _] → [_, _, 11, _] → [_, 4, 1, _, 4]

Show answer

Answer: Row3[3]=25, Row5[4]=10, Row3[1]=13, Row5[1]=4, Row4[1]=8, Row4[4]=14, Row4[2]=5, Row1[1]=70

SubType
number-pyramid
Difficulty
hard
Levels
  • [70]
  • [29,41]
  • [13,16,25]
  • [8,5,11,14]
  • [4,4,1,10,4]
Base
  • 4
  • 4
  • 1
  • 10
  • 4
TopValue
70
HiddenCells
  • {"r":2,"c":2,"v":25}
  • {"r":4,"c":3,"v":10}
  • {"r":2,"c":0,"v":13}
  • {"r":4,"c":0,"v":4}
  • {"r":3,"c":0,"v":8}
  • {"r":3,"c":3,"v":14}
  • {"r":3,"c":1,"v":5}
  • {"r":0,"c":0,"v":70}