hard Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [28, 22, _] → [13, _, 7, _] → [4, 9, 6, _, _]

Show answer

Answer: Row4[2]=15, Row5[4]=1, Row2[1]=50, Row1[1]=85, Row2[2]=35, Row3[3]=13, Row4[4]=6, Row5[5]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [85]
  • [50,35]
  • [28,22,13]
  • [13,15,7,6]
  • [4,9,6,1,5]
Base
  • 4
  • 9
  • 6
  • 1
  • 5
TopValue
85
HiddenCells
  • {"r":3,"c":1,"v":15}
  • {"r":4,"c":3,"v":1}
  • {"r":1,"c":0,"v":50}
  • {"r":0,"c":0,"v":85}
  • {"r":1,"c":1,"v":35}
  • {"r":2,"c":2,"v":13}
  • {"r":3,"c":3,"v":6}
  • {"r":4,"c":4,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [53] → [_, _] → [_, 12, _] → [9, _, 7, 8] → [_, _, 2, _, 3]

Show answer

Answer: Row2[2]=27, Row5[4]=5, Row4[2]=5, Row3[1]=14, Row3[3]=15, Row5[1]=6, Row2[1]=26, Row5[2]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [53]
  • [26,27]
  • [14,12,15]
  • [9,5,7,8]
  • [6,3,2,5,3]
Base
  • 6
  • 3
  • 2
  • 5
  • 3
TopValue
53
HiddenCells
  • {"r":1,"c":1,"v":27}
  • {"r":4,"c":3,"v":5}
  • {"r":3,"c":1,"v":5}
  • {"r":2,"c":0,"v":14}
  • {"r":2,"c":2,"v":15}
  • {"r":4,"c":0,"v":6}
  • {"r":1,"c":0,"v":26}
  • {"r":4,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [103] → [47, _] → [23, _, _] → [13, 10, _, _] → [8, _, _, _, 9]

Show answer

Answer: Row2[2]=56, Row5[3]=5, Row3[2]=24, Row5[4]=9, Row4[3]=14, Row4[4]=18, Row5[2]=5, Row3[3]=32

SubType
number-pyramid
Difficulty
hard
Levels
  • [103]
  • [47,56]
  • [23,24,32]
  • [13,10,14,18]
  • [8,5,5,9,9]
Base
  • 8
  • 5
  • 5
  • 9
  • 9
TopValue
103
HiddenCells
  • {"r":1,"c":1,"v":56}
  • {"r":4,"c":2,"v":5}
  • {"r":2,"c":1,"v":24}
  • {"r":4,"c":3,"v":9}
  • {"r":3,"c":2,"v":14}
  • {"r":3,"c":3,"v":18}
  • {"r":4,"c":1,"v":5}
  • {"r":2,"c":2,"v":32}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [56, 38] → [_, _, 15] → [19, 14, _, _] → [_, 10, 4, _, _]

Show answer

Answer: Row5[1]=9, Row1[1]=94, Row3[1]=33, Row3[2]=23, Row5[5]=1, Row4[4]=6, Row4[3]=9, Row5[4]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [94]
  • [56,38]
  • [33,23,15]
  • [19,14,9,6]
  • [9,10,4,5,1]
Base
  • 9
  • 10
  • 4
  • 5
  • 1
TopValue
94
HiddenCells
  • {"r":4,"c":0,"v":9}
  • {"r":0,"c":0,"v":94}
  • {"r":2,"c":0,"v":33}
  • {"r":2,"c":1,"v":23}
  • {"r":4,"c":4,"v":1}
  • {"r":3,"c":3,"v":6}
  • {"r":3,"c":2,"v":9}
  • {"r":4,"c":3,"v":5}