hard Set 12 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [81] → [_, 41] → [22, 18, _] → [13, _, _, _] → [_, 5, 4, _, _]

Show answer

Answer: Row2[1]=40, Row5[4]=5, Row4[3]=9, Row5[5]=9, Row4[2]=9, Row3[3]=23, Row5[1]=8, Row4[4]=14

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [40,41]
  • [22,18,23]
  • [13,9,9,14]
  • [8,5,4,5,9]
Base
  • 8
  • 5
  • 4
  • 5
  • 9
TopValue
81
HiddenCells
  • {"r":1,"c":0,"v":40}
  • {"r":4,"c":3,"v":5}
  • {"r":3,"c":2,"v":9}
  • {"r":4,"c":4,"v":9}
  • {"r":3,"c":1,"v":9}
  • {"r":2,"c":2,"v":23}
  • {"r":4,"c":0,"v":8}
  • {"r":3,"c":3,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [74, 58] → [39, _, _] → [19, _, 15, _] → [_, 10, 10, _, _]

Show answer

Answer: Row4[2]=20, Row3[3]=23, Row3[2]=35, Row4[4]=8, Row5[1]=9, Row5[4]=5, Row1[1]=132, Row5[5]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [132]
  • [74,58]
  • [39,35,23]
  • [19,20,15,8]
  • [9,10,10,5,3]
Base
  • 9
  • 10
  • 10
  • 5
  • 3
TopValue
132
HiddenCells
  • {"r":3,"c":1,"v":20}
  • {"r":2,"c":2,"v":23}
  • {"r":2,"c":1,"v":35}
  • {"r":3,"c":3,"v":8}
  • {"r":4,"c":0,"v":9}
  • {"r":4,"c":3,"v":5}
  • {"r":0,"c":0,"v":132}
  • {"r":4,"c":4,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 53] → [_, 24, _] → [_, _, 16, _] → [_, 2, 6, 10, 3]

Show answer

Answer: Row1[1]=94, Row2[1]=41, Row5[1]=7, Row4[4]=13, Row4[2]=8, Row4[1]=9, Row3[3]=29, Row3[1]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [94]
  • [41,53]
  • [17,24,29]
  • [9,8,16,13]
  • [7,2,6,10,3]
Base
  • 7
  • 2
  • 6
  • 10
  • 3
TopValue
94
HiddenCells
  • {"r":0,"c":0,"v":94}
  • {"r":1,"c":0,"v":41}
  • {"r":4,"c":0,"v":7}
  • {"r":3,"c":3,"v":13}
  • {"r":3,"c":1,"v":8}
  • {"r":3,"c":0,"v":9}
  • {"r":2,"c":2,"v":29}
  • {"r":2,"c":0,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [19, _, 17] → [7, _, _, 5] → [_, _, 9, 3, 2]

Show answer

Answer: Row1[1]=84, Row5[2]=3, Row2[2]=41, Row3[2]=24, Row5[1]=4, Row4[3]=12, Row4[2]=12, Row2[1]=43

SubType
number-pyramid
Difficulty
hard
Levels
  • [84]
  • [43,41]
  • [19,24,17]
  • [7,12,12,5]
  • [4,3,9,3,2]
Base
  • 4
  • 3
  • 9
  • 3
  • 2
TopValue
84
HiddenCells
  • {"r":0,"c":0,"v":84}
  • {"r":4,"c":1,"v":3}
  • {"r":1,"c":1,"v":41}
  • {"r":2,"c":1,"v":24}
  • {"r":4,"c":0,"v":4}
  • {"r":3,"c":2,"v":12}
  • {"r":3,"c":1,"v":12}
  • {"r":1,"c":0,"v":43}