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): [_] → [42, _] → [_, 19, _] → [11, _, 7, _] → [4, 7, _, _, 8]

Show answer

Answer: Row4[4]=10, Row3[1]=23, Row2[2]=36, Row5[3]=5, Row5[4]=2, Row4[2]=12, Row1[1]=78, Row3[3]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [78]
  • [42,36]
  • [23,19,17]
  • [11,12,7,10]
  • [4,7,5,2,8]
Base
  • 4
  • 7
  • 5
  • 2
  • 8
TopValue
78
HiddenCells
  • {"r":3,"c":3,"v":10}
  • {"r":2,"c":0,"v":23}
  • {"r":1,"c":1,"v":36}
  • {"r":4,"c":2,"v":5}
  • {"r":4,"c":3,"v":2}
  • {"r":3,"c":1,"v":12}
  • {"r":0,"c":0,"v":78}
  • {"r":2,"c":2,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [57] → [_, 24] → [21, _, _] → [14, 7, _, _] → [_, _, _, 3, 4]

Show answer

Answer: Row5[3]=2, Row4[3]=5, Row4[4]=7, Row5[2]=5, Row3[2]=12, Row5[1]=9, Row3[3]=12, Row2[1]=33

SubType
number-pyramid
Difficulty
hard
Levels
  • [57]
  • [33,24]
  • [21,12,12]
  • [14,7,5,7]
  • [9,5,2,3,4]
Base
  • 9
  • 5
  • 2
  • 3
  • 4
TopValue
57
HiddenCells
  • {"r":4,"c":2,"v":2}
  • {"r":3,"c":2,"v":5}
  • {"r":3,"c":3,"v":7}
  • {"r":4,"c":1,"v":5}
  • {"r":2,"c":1,"v":12}
  • {"r":4,"c":0,"v":9}
  • {"r":2,"c":2,"v":12}
  • {"r":1,"c":0,"v":33}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [104] → [_, 51] → [_, 27, 24] → [_, _, 13, 11] → [_, _, _, _, 6]

Show answer

Answer: Row5[1]=6, Row2[1]=53, Row5[4]=5, Row4[2]=14, Row5[2]=6, Row3[1]=26, Row5[3]=8, Row4[1]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [104]
  • [53,51]
  • [26,27,24]
  • [12,14,13,11]
  • [6,6,8,5,6]
Base
  • 6
  • 6
  • 8
  • 5
  • 6
TopValue
104
HiddenCells
  • {"r":4,"c":0,"v":6}
  • {"r":1,"c":0,"v":53}
  • {"r":4,"c":3,"v":5}
  • {"r":3,"c":1,"v":14}
  • {"r":4,"c":1,"v":6}
  • {"r":2,"c":0,"v":26}
  • {"r":4,"c":2,"v":8}
  • {"r":3,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 37] → [27, 19, _] → [_, 10, _, 9] → [10, _, 3, _, _]

Show answer

Answer: Row5[4]=6, Row2[1]=46, Row4[3]=9, Row1[1]=83, Row4[1]=17, Row5[2]=7, Row5[5]=3, Row3[3]=18

SubType
number-pyramid
Difficulty
hard
Levels
  • [83]
  • [46,37]
  • [27,19,18]
  • [17,10,9,9]
  • [10,7,3,6,3]
Base
  • 10
  • 7
  • 3
  • 6
  • 3
TopValue
83
HiddenCells
  • {"r":4,"c":3,"v":6}
  • {"r":1,"c":0,"v":46}
  • {"r":3,"c":2,"v":9}
  • {"r":0,"c":0,"v":83}
  • {"r":3,"c":0,"v":17}
  • {"r":4,"c":1,"v":7}
  • {"r":4,"c":4,"v":3}
  • {"r":2,"c":2,"v":18}