hard Set 27 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 28] → [_, 11, _] → [6, 4, _, _] → [5, 1, 3, _, _]

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Answer: Row5[4]=4, Row3[1]=10, Row4[3]=7, Row2[1]=21, Row1[1]=49, Row5[5]=6, Row4[4]=10, Row3[3]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [49]
  • [21,28]
  • [10,11,17]
  • [6,4,7,10]
  • [5,1,3,4,6]
Base
  • 5
  • 1
  • 3
  • 4
  • 6
TopValue
49
HiddenCells
  • {"r":4,"c":3,"v":4}
  • {"r":2,"c":0,"v":10}
  • {"r":3,"c":2,"v":7}
  • {"r":1,"c":0,"v":21}
  • {"r":0,"c":0,"v":49}
  • {"r":4,"c":4,"v":6}
  • {"r":3,"c":3,"v":10}
  • {"r":2,"c":2,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [52, _] → [24, _, _] → [9, _, _, 13] → [1, 8, _, 6, _]

Show answer

Answer: Row5[5]=7, Row5[3]=7, Row2[2]=54, Row1[1]=106, Row3[3]=26, Row4[2]=15, Row4[3]=13, Row3[2]=28

SubType
number-pyramid
Difficulty
hard
Levels
  • [106]
  • [52,54]
  • [24,28,26]
  • [9,15,13,13]
  • [1,8,7,6,7]
Base
  • 1
  • 8
  • 7
  • 6
  • 7
TopValue
106
HiddenCells
  • {"r":4,"c":4,"v":7}
  • {"r":4,"c":2,"v":7}
  • {"r":1,"c":1,"v":54}
  • {"r":0,"c":0,"v":106}
  • {"r":2,"c":2,"v":26}
  • {"r":3,"c":1,"v":15}
  • {"r":3,"c":2,"v":13}
  • {"r":2,"c":1,"v":28}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [42, _] → [_, 28, 30] → [4, _, 18, _] → [2, _, _, 10, _]

Show answer

Answer: Row3[1]=14, Row4[2]=10, Row5[2]=2, Row5[5]=2, Row2[2]=58, Row5[3]=8, Row1[1]=100, Row4[4]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [100]
  • [42,58]
  • [14,28,30]
  • [4,10,18,12]
  • [2,2,8,10,2]
Base
  • 2
  • 2
  • 8
  • 10
  • 2
TopValue
100
HiddenCells
  • {"r":2,"c":0,"v":14}
  • {"r":3,"c":1,"v":10}
  • {"r":4,"c":1,"v":2}
  • {"r":4,"c":4,"v":2}
  • {"r":1,"c":1,"v":58}
  • {"r":4,"c":2,"v":8}
  • {"r":0,"c":0,"v":100}
  • {"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): [80] → [_, _] → [_, _, _] → [_, 12, _, _] → [1, 10, 2, 5, 7]

Show answer

Answer: Row4[1]=11, Row3[3]=19, Row2[2]=38, Row4[4]=12, Row3[2]=19, Row3[1]=23, Row4[3]=7, Row2[1]=42

SubType
number-pyramid
Difficulty
hard
Levels
  • [80]
  • [42,38]
  • [23,19,19]
  • [11,12,7,12]
  • [1,10,2,5,7]
Base
  • 1
  • 10
  • 2
  • 5
  • 7
TopValue
80
HiddenCells
  • {"r":3,"c":0,"v":11}
  • {"r":2,"c":2,"v":19}
  • {"r":1,"c":1,"v":38}
  • {"r":3,"c":3,"v":12}
  • {"r":2,"c":1,"v":19}
  • {"r":2,"c":0,"v":23}
  • {"r":3,"c":2,"v":7}
  • {"r":1,"c":0,"v":42}