hard Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [86] → [_, 43] → [_, 19, _] → [14, 10, 9, 15] → [_, _, _, _, _]

Show answer

Answer: Row3[3]=24, Row3[1]=24, Row5[1]=7, Row5[5]=9, Row2[1]=43, Row5[4]=6, Row5[3]=3, Row5[2]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [86]
  • [43,43]
  • [24,19,24]
  • [14,10,9,15]
  • [7,7,3,6,9]
Base
  • 7
  • 7
  • 3
  • 6
  • 9
TopValue
86
HiddenCells
  • {"r":2,"c":2,"v":24}
  • {"r":2,"c":0,"v":24}
  • {"r":4,"c":0,"v":7}
  • {"r":4,"c":4,"v":9}
  • {"r":1,"c":0,"v":43}
  • {"r":4,"c":3,"v":6}
  • {"r":4,"c":2,"v":3}
  • {"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): [76] → [48, _] → [28, 20, 8] → [_, 14, _, _] → [_, _, _, 1, _]

Show answer

Answer: Row5[3]=5, Row4[4]=2, Row5[2]=9, Row4[1]=14, Row5[5]=1, Row4[3]=6, Row5[1]=5, Row2[2]=28

SubType
number-pyramid
Difficulty
hard
Levels
  • [76]
  • [48,28]
  • [28,20,8]
  • [14,14,6,2]
  • [5,9,5,1,1]
Base
  • 5
  • 9
  • 5
  • 1
  • 1
TopValue
76
HiddenCells
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":3,"v":2}
  • {"r":4,"c":1,"v":9}
  • {"r":3,"c":0,"v":14}
  • {"r":4,"c":4,"v":1}
  • {"r":3,"c":2,"v":6}
  • {"r":4,"c":0,"v":5}
  • {"r":1,"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): [_] → [59, 39] → [_, 26, _] → [_, _, _, _] → [7, _, 8, 1, 3]

Show answer

Answer: Row4[2]=17, Row4[4]=4, Row4[3]=9, Row1[1]=98, Row5[2]=9, Row3[1]=33, Row4[1]=16, Row3[3]=13

SubType
number-pyramid
Difficulty
hard
Levels
  • [98]
  • [59,39]
  • [33,26,13]
  • [16,17,9,4]
  • [7,9,8,1,3]
Base
  • 7
  • 9
  • 8
  • 1
  • 3
TopValue
98
HiddenCells
  • {"r":3,"c":1,"v":17}
  • {"r":3,"c":3,"v":4}
  • {"r":3,"c":2,"v":9}
  • {"r":0,"c":0,"v":98}
  • {"r":4,"c":1,"v":9}
  • {"r":2,"c":0,"v":33}
  • {"r":3,"c":0,"v":16}
  • {"r":2,"c":2,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [64] → [_, 25] → [23, _, _] → [11, 12, _, _] → [_, 9, 3, _, _]

Show answer

Answer: Row2[1]=39, Row5[5]=4, Row5[4]=1, Row3[3]=9, Row3[2]=16, Row4[4]=5, Row4[3]=4, Row5[1]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [64]
  • [39,25]
  • [23,16,9]
  • [11,12,4,5]
  • [2,9,3,1,4]
Base
  • 2
  • 9
  • 3
  • 1
  • 4
TopValue
64
HiddenCells
  • {"r":1,"c":0,"v":39}
  • {"r":4,"c":4,"v":4}
  • {"r":4,"c":3,"v":1}
  • {"r":2,"c":2,"v":9}
  • {"r":2,"c":1,"v":16}
  • {"r":3,"c":3,"v":5}
  • {"r":3,"c":2,"v":4}
  • {"r":4,"c":0,"v":2}