hard Set 13 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [87] → [_, _] → [_, 21, 13] → [18, _, _, _] → [_, 9, 5, 2, _]

Show answer

Answer: Row2[1]=53, Row4[2]=14, Row3[1]=32, Row5[5]=4, Row2[2]=34, Row4[4]=6, Row4[3]=7, Row5[1]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [87]
  • [53,34]
  • [32,21,13]
  • [18,14,7,6]
  • [9,9,5,2,4]
Base
  • 9
  • 9
  • 5
  • 2
  • 4
TopValue
87
HiddenCells
  • {"r":1,"c":0,"v":53}
  • {"r":3,"c":1,"v":14}
  • {"r":2,"c":0,"v":32}
  • {"r":4,"c":4,"v":4}
  • {"r":1,"c":1,"v":34}
  • {"r":3,"c":3,"v":6}
  • {"r":3,"c":2,"v":7}
  • {"r":4,"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): [_] → [_, 39] → [_, 21, _] → [_, 10, _, 7] → [5, _, _, 2, 5]

Show answer

Answer: Row3[1]=16, Row2[1]=37, Row5[3]=9, Row4[3]=11, Row1[1]=76, Row3[3]=18, Row4[1]=6, Row5[2]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [76]
  • [37,39]
  • [16,21,18]
  • [6,10,11,7]
  • [5,1,9,2,5]
Base
  • 5
  • 1
  • 9
  • 2
  • 5
TopValue
76
HiddenCells
  • {"r":2,"c":0,"v":16}
  • {"r":1,"c":0,"v":37}
  • {"r":4,"c":2,"v":9}
  • {"r":3,"c":2,"v":11}
  • {"r":0,"c":0,"v":76}
  • {"r":2,"c":2,"v":18}
  • {"r":3,"c":0,"v":6}
  • {"r":4,"c":1,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [32, _, 21] → [17, 15, _, _] → [8, _, _, 6, 3]

Show answer

Answer: Row1[1]=107, Row5[3]=6, Row2[1]=59, Row2[2]=48, Row3[2]=27, Row5[2]=9, Row4[4]=9, Row4[3]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [107]
  • [59,48]
  • [32,27,21]
  • [17,15,12,9]
  • [8,9,6,6,3]
Base
  • 8
  • 9
  • 6
  • 6
  • 3
TopValue
107
HiddenCells
  • {"r":0,"c":0,"v":107}
  • {"r":4,"c":2,"v":6}
  • {"r":1,"c":0,"v":59}
  • {"r":1,"c":1,"v":48}
  • {"r":2,"c":1,"v":27}
  • {"r":4,"c":1,"v":9}
  • {"r":3,"c":3,"v":9}
  • {"r":3,"c":2,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [63] → [_, 39] → [_, _, 22] → [_, _, _, _] → [1, _, 4, 8, 2]

Show answer

Answer: Row4[1]=2, Row3[1]=7, Row4[3]=12, Row2[1]=24, Row5[2]=1, Row3[2]=17, Row4[4]=10, Row4[2]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [63]
  • [24,39]
  • [7,17,22]
  • [2,5,12,10]
  • [1,1,4,8,2]
Base
  • 1
  • 1
  • 4
  • 8
  • 2
TopValue
63
HiddenCells
  • {"r":3,"c":0,"v":2}
  • {"r":2,"c":0,"v":7}
  • {"r":3,"c":2,"v":12}
  • {"r":1,"c":0,"v":24}
  • {"r":4,"c":1,"v":1}
  • {"r":2,"c":1,"v":17}
  • {"r":3,"c":3,"v":10}
  • {"r":3,"c":1,"v":5}