hard Set 89 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 37] → [_, 20, _] → [_, 11, _, 8] → [_, _, 3, 6, 2]

Show answer

Answer: Row4[3]=9, Row3[3]=17, Row1[1]=78, Row3[1]=21, Row2[1]=41, Row4[1]=10, Row5[2]=8, Row5[1]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [78]
  • [41,37]
  • [21,20,17]
  • [10,11,9,8]
  • [2,8,3,6,2]
Base
  • 2
  • 8
  • 3
  • 6
  • 2
TopValue
78
HiddenCells
  • {"r":3,"c":2,"v":9}
  • {"r":2,"c":2,"v":17}
  • {"r":0,"c":0,"v":78}
  • {"r":2,"c":0,"v":21}
  • {"r":1,"c":0,"v":41}
  • {"r":3,"c":0,"v":10}
  • {"r":4,"c":1,"v":8}
  • {"r":4,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [34, _] → [19, _, _] → [_, 9, _, _] → [4, 6, 3, _, 9]

Show answer

Answer: Row4[1]=10, Row4[3]=6, Row2[2]=33, Row5[4]=3, Row4[4]=12, Row3[3]=18, Row1[1]=67, Row3[2]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [67]
  • [34,33]
  • [19,15,18]
  • [10,9,6,12]
  • [4,6,3,3,9]
Base
  • 4
  • 6
  • 3
  • 3
  • 9
TopValue
67
HiddenCells
  • {"r":3,"c":0,"v":10}
  • {"r":3,"c":2,"v":6}
  • {"r":1,"c":1,"v":33}
  • {"r":4,"c":3,"v":3}
  • {"r":3,"c":3,"v":12}
  • {"r":2,"c":2,"v":18}
  • {"r":0,"c":0,"v":67}
  • {"r":2,"c":1,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [97] → [_, 51] → [_, 25, 26] → [_, _, 13, 13] → [_, 2, _, _, _]

Show answer

Answer: Row5[3]=10, Row5[4]=3, Row5[1]=7, Row5[5]=10, Row3[1]=21, Row4[1]=9, Row4[2]=12, Row2[1]=46

SubType
number-pyramid
Difficulty
hard
Levels
  • [97]
  • [46,51]
  • [21,25,26]
  • [9,12,13,13]
  • [7,2,10,3,10]
Base
  • 7
  • 2
  • 10
  • 3
  • 10
TopValue
97
HiddenCells
  • {"r":4,"c":2,"v":10}
  • {"r":4,"c":3,"v":3}
  • {"r":4,"c":0,"v":7}
  • {"r":4,"c":4,"v":10}
  • {"r":2,"c":0,"v":21}
  • {"r":3,"c":0,"v":9}
  • {"r":3,"c":1,"v":12}
  • {"r":1,"c":0,"v":46}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [52] → [31, 21] → [_, _, _] → [_, _, 5, _] → [_, 5, _, 3, 1]

Show answer

Answer: Row5[3]=2, Row3[2]=12, Row5[1]=7, Row4[2]=7, Row4[4]=4, Row3[3]=9, Row3[1]=19, Row4[1]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [52]
  • [31,21]
  • [19,12,9]
  • [12,7,5,4]
  • [7,5,2,3,1]
Base
  • 7
  • 5
  • 2
  • 3
  • 1
TopValue
52
HiddenCells
  • {"r":4,"c":2,"v":2}
  • {"r":2,"c":1,"v":12}
  • {"r":4,"c":0,"v":7}
  • {"r":3,"c":1,"v":7}
  • {"r":3,"c":3,"v":4}
  • {"r":2,"c":2,"v":9}
  • {"r":2,"c":0,"v":19}
  • {"r":3,"c":0,"v":12}