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): [_] → [18, _] → [_, _, _] → [2, _, 8, _] → [1, 1, 3, _, 5]

Show answer

Answer: Row3[3]=18, Row3[1]=6, Row2[2]=30, Row5[4]=5, Row4[2]=4, Row3[2]=12, Row4[4]=10, Row1[1]=48

SubType
number-pyramid
Difficulty
hard
Levels
  • [48]
  • [18,30]
  • [6,12,18]
  • [2,4,8,10]
  • [1,1,3,5,5]
Base
  • 1
  • 1
  • 3
  • 5
  • 5
TopValue
48
HiddenCells
  • {"r":2,"c":2,"v":18}
  • {"r":2,"c":0,"v":6}
  • {"r":1,"c":1,"v":30}
  • {"r":4,"c":3,"v":5}
  • {"r":3,"c":1,"v":4}
  • {"r":2,"c":1,"v":12}
  • {"r":3,"c":3,"v":10}
  • {"r":0,"c":0,"v":48}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, _] → [13, 13, _, 11] → [9, _, 9, 2, 9]

Show answer

Answer: Row3[2]=24, Row3[3]=22, Row4[3]=11, Row2[1]=50, Row2[2]=46, Row3[1]=26, Row1[1]=96, Row5[2]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [96]
  • [50,46]
  • [26,24,22]
  • [13,13,11,11]
  • [9,4,9,2,9]
Base
  • 9
  • 4
  • 9
  • 2
  • 9
TopValue
96
HiddenCells
  • {"r":2,"c":1,"v":24}
  • {"r":2,"c":2,"v":22}
  • {"r":3,"c":2,"v":11}
  • {"r":1,"c":0,"v":50}
  • {"r":1,"c":1,"v":46}
  • {"r":2,"c":0,"v":26}
  • {"r":0,"c":0,"v":96}
  • {"r":4,"c":1,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [25, _, 13] → [16, _, 6, 7] → [10, 6, _, _, _]

Show answer

Answer: Row5[3]=3, Row1[1]=68, Row2[2]=28, Row3[2]=15, Row5[4]=3, Row4[2]=9, Row2[1]=40, Row5[5]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [68]
  • [40,28]
  • [25,15,13]
  • [16,9,6,7]
  • [10,6,3,3,4]
Base
  • 10
  • 6
  • 3
  • 3
  • 4
TopValue
68
HiddenCells
  • {"r":4,"c":2,"v":3}
  • {"r":0,"c":0,"v":68}
  • {"r":1,"c":1,"v":28}
  • {"r":2,"c":1,"v":15}
  • {"r":4,"c":3,"v":3}
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":0,"v":40}
  • {"r":4,"c":4,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [31, _] → [_, 12, _] → [_, 8, 4, 13] → [4, _, 1, _, _]

Show answer

Answer: Row4[1]=11, Row3[3]=17, Row3[1]=19, Row5[5]=10, Row5[2]=7, Row1[1]=60, Row5[4]=3, Row2[2]=29

SubType
number-pyramid
Difficulty
hard
Levels
  • [60]
  • [31,29]
  • [19,12,17]
  • [11,8,4,13]
  • [4,7,1,3,10]
Base
  • 4
  • 7
  • 1
  • 3
  • 10
TopValue
60
HiddenCells
  • {"r":3,"c":0,"v":11}
  • {"r":2,"c":2,"v":17}
  • {"r":2,"c":0,"v":19}
  • {"r":4,"c":4,"v":10}
  • {"r":4,"c":1,"v":7}
  • {"r":0,"c":0,"v":60}
  • {"r":4,"c":3,"v":3}
  • {"r":1,"c":1,"v":29}