hard Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [44, _] → [22, 22, _] → [9, 13, _, _] → [1, _, _, 4, _]

Show answer

Answer: Row5[3]=5, Row4[4]=6, Row2[2]=37, Row4[3]=9, Row3[3]=15, Row1[1]=81, Row5[5]=2, Row5[2]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [44,37]
  • [22,22,15]
  • [9,13,9,6]
  • [1,8,5,4,2]
Base
  • 1
  • 8
  • 5
  • 4
  • 2
TopValue
81
HiddenCells
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":3,"v":6}
  • {"r":1,"c":1,"v":37}
  • {"r":3,"c":2,"v":9}
  • {"r":2,"c":2,"v":15}
  • {"r":0,"c":0,"v":81}
  • {"r":4,"c":4,"v":2}
  • {"r":4,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [102] → [_, _] → [_, _, 25] → [11, _, _, _] → [7, 4, _, 7, 3]

Show answer

Answer: Row3[2]=27, Row5[3]=8, Row4[2]=12, Row2[2]=52, Row2[1]=50, Row3[1]=23, Row4[4]=10, Row4[3]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [102]
  • [50,52]
  • [23,27,25]
  • [11,12,15,10]
  • [7,4,8,7,3]
Base
  • 7
  • 4
  • 8
  • 7
  • 3
TopValue
102
HiddenCells
  • {"r":2,"c":1,"v":27}
  • {"r":4,"c":2,"v":8}
  • {"r":3,"c":1,"v":12}
  • {"r":1,"c":1,"v":52}
  • {"r":1,"c":0,"v":50}
  • {"r":2,"c":0,"v":23}
  • {"r":3,"c":3,"v":10}
  • {"r":3,"c":2,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [50, _] → [_, _, 30] → [_, 11, _, 12] → [7, _, 8, _, 2]

Show answer

Answer: Row3[1]=21, Row4[1]=10, Row2[2]=59, Row3[2]=29, Row1[1]=109, Row5[2]=3, Row4[3]=18, Row5[4]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [109]
  • [50,59]
  • [21,29,30]
  • [10,11,18,12]
  • [7,3,8,10,2]
Base
  • 7
  • 3
  • 8
  • 10
  • 2
TopValue
109
HiddenCells
  • {"r":2,"c":0,"v":21}
  • {"r":3,"c":0,"v":10}
  • {"r":1,"c":1,"v":59}
  • {"r":2,"c":1,"v":29}
  • {"r":0,"c":0,"v":109}
  • {"r":4,"c":1,"v":3}
  • {"r":3,"c":2,"v":18}
  • {"r":4,"c":3,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 61] → [_, _, 35] → [_, 9, 17, _] → [2, 1, 8, _, _]

Show answer

Answer: Row5[5]=9, Row4[4]=18, Row3[2]=26, Row5[4]=9, Row2[1]=38, Row1[1]=99, Row3[1]=12, Row4[1]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [99]
  • [38,61]
  • [12,26,35]
  • [3,9,17,18]
  • [2,1,8,9,9]
Base
  • 2
  • 1
  • 8
  • 9
  • 9
TopValue
99
HiddenCells
  • {"r":4,"c":4,"v":9}
  • {"r":3,"c":3,"v":18}
  • {"r":2,"c":1,"v":26}
  • {"r":4,"c":3,"v":9}
  • {"r":1,"c":0,"v":38}
  • {"r":0,"c":0,"v":99}
  • {"r":2,"c":0,"v":12}
  • {"r":3,"c":0,"v":3}