hard Set 29 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [77] → [37, _] → [_, 19, 21] → [_, _, _, _] → [4, 5, 4, _, _]

Show answer

Answer: Row3[1]=18, Row5[5]=5, Row2[2]=40, Row5[4]=6, Row4[4]=11, Row4[3]=10, Row4[2]=9, Row4[1]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [77]
  • [37,40]
  • [18,19,21]
  • [9,9,10,11]
  • [4,5,4,6,5]
Base
  • 4
  • 5
  • 4
  • 6
  • 5
TopValue
77
HiddenCells
  • {"r":2,"c":0,"v":18}
  • {"r":4,"c":4,"v":5}
  • {"r":1,"c":1,"v":40}
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":3,"v":11}
  • {"r":3,"c":2,"v":10}
  • {"r":3,"c":1,"v":9}
  • {"r":3,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [109] → [_, 60] → [_, 28, _] → [_, 12, 16, 16] → [_, _, _, 10, _]

Show answer

Answer: Row5[2]=6, Row5[5]=6, Row3[3]=32, Row5[3]=6, Row4[1]=9, Row3[1]=21, Row2[1]=49, Row5[1]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [109]
  • [49,60]
  • [21,28,32]
  • [9,12,16,16]
  • [3,6,6,10,6]
Base
  • 3
  • 6
  • 6
  • 10
  • 6
TopValue
109
HiddenCells
  • {"r":4,"c":1,"v":6}
  • {"r":4,"c":4,"v":6}
  • {"r":2,"c":2,"v":32}
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":0,"v":9}
  • {"r":2,"c":0,"v":21}
  • {"r":1,"c":0,"v":49}
  • {"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): [106] → [_, 55] → [_, _, 31] → [16, 11, _, 18] → [_, 7, _, _, _]

Show answer

Answer: Row4[3]=13, Row2[1]=51, Row5[4]=9, Row3[2]=24, Row5[1]=9, Row5[5]=9, Row3[1]=27, Row5[3]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [106]
  • [51,55]
  • [27,24,31]
  • [16,11,13,18]
  • [9,7,4,9,9]
Base
  • 9
  • 7
  • 4
  • 9
  • 9
TopValue
106
HiddenCells
  • {"r":3,"c":2,"v":13}
  • {"r":1,"c":0,"v":51}
  • {"r":4,"c":3,"v":9}
  • {"r":2,"c":1,"v":24}
  • {"r":4,"c":0,"v":9}
  • {"r":4,"c":4,"v":9}
  • {"r":2,"c":0,"v":27}
  • {"r":4,"c":2,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 31] → [22, _, _] → [12, 10, _, _] → [_, 7, 3, _, 9]

Show answer

Answer: Row4[3]=5, Row4[4]=11, Row2[1]=37, Row3[2]=15, Row5[4]=2, Row3[3]=16, Row5[1]=5, Row1[1]=68

SubType
number-pyramid
Difficulty
hard
Levels
  • [68]
  • [37,31]
  • [22,15,16]
  • [12,10,5,11]
  • [5,7,3,2,9]
Base
  • 5
  • 7
  • 3
  • 2
  • 9
TopValue
68
HiddenCells
  • {"r":3,"c":2,"v":5}
  • {"r":3,"c":3,"v":11}
  • {"r":1,"c":0,"v":37}
  • {"r":2,"c":1,"v":15}
  • {"r":4,"c":3,"v":2}
  • {"r":2,"c":2,"v":16}
  • {"r":4,"c":0,"v":5}
  • {"r":0,"c":0,"v":68}