hard Set 77 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [61] → [_, _] → [_, _, _] → [_, 5, 10, _] → [4, _, 4, 6, 5]

Show answer

Answer: Row3[3]=21, Row5[2]=1, Row3[2]=15, Row2[1]=25, Row4[1]=5, Row2[2]=36, Row3[1]=10, Row4[4]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [61]
  • [25,36]
  • [10,15,21]
  • [5,5,10,11]
  • [4,1,4,6,5]
Base
  • 4
  • 1
  • 4
  • 6
  • 5
TopValue
61
HiddenCells
  • {"r":2,"c":2,"v":21}
  • {"r":4,"c":1,"v":1}
  • {"r":2,"c":1,"v":15}
  • {"r":1,"c":0,"v":25}
  • {"r":3,"c":0,"v":5}
  • {"r":1,"c":1,"v":36}
  • {"r":2,"c":0,"v":10}
  • {"r":3,"c":3,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [62, _] → [_, _, 32] → [15, _, _, _] → [5, _, 6, 9, 8]

Show answer

Answer: Row3[1]=31, Row1[1]=125, Row2[2]=63, Row4[4]=17, Row5[2]=10, Row4[3]=15, Row3[2]=31, Row4[2]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [125]
  • [62,63]
  • [31,31,32]
  • [15,16,15,17]
  • [5,10,6,9,8]
Base
  • 5
  • 10
  • 6
  • 9
  • 8
TopValue
125
HiddenCells
  • {"r":2,"c":0,"v":31}
  • {"r":0,"c":0,"v":125}
  • {"r":1,"c":1,"v":63}
  • {"r":3,"c":3,"v":17}
  • {"r":4,"c":1,"v":10}
  • {"r":3,"c":2,"v":15}
  • {"r":2,"c":1,"v":31}
  • {"r":3,"c":1,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, 8] → [_, _, 4] → [_, 2, _, _] → [_, 1, 1, 1, _]

Show answer

Answer: Row4[1]=2, Row3[2]=4, Row5[1]=1, Row3[1]=4, Row4[3]=2, Row5[5]=1, Row1[1]=16, Row4[4]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [16]
  • [8,8]
  • [4,4,4]
  • [2,2,2,2]
  • [1,1,1,1,1]
Base
  • 1
  • 1
  • 1
  • 1
  • 1
TopValue
16
HiddenCells
  • {"r":3,"c":0,"v":2}
  • {"r":2,"c":1,"v":4}
  • {"r":4,"c":0,"v":1}
  • {"r":2,"c":0,"v":4}
  • {"r":3,"c":2,"v":2}
  • {"r":4,"c":4,"v":1}
  • {"r":0,"c":0,"v":16}
  • {"r":3,"c":3,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [57] → [_, 24] → [22, 11, 13] → [_, 7, _, _] → [_, _, _, _, 6]

Show answer

Answer: Row4[1]=15, Row5[4]=3, Row5[3]=1, Row4[4]=9, Row2[1]=33, Row4[3]=4, Row5[1]=9, Row5[2]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [57]
  • [33,24]
  • [22,11,13]
  • [15,7,4,9]
  • [9,6,1,3,6]
Base
  • 9
  • 6
  • 1
  • 3
  • 6
TopValue
57
HiddenCells
  • {"r":3,"c":0,"v":15}
  • {"r":4,"c":3,"v":3}
  • {"r":4,"c":2,"v":1}
  • {"r":3,"c":3,"v":9}
  • {"r":1,"c":0,"v":33}
  • {"r":3,"c":2,"v":4}
  • {"r":4,"c":0,"v":9}
  • {"r":4,"c":1,"v":6}