hard Set 30 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [109] → [56, _] → [29, 27, 26] → [17, _, 15, _] → [_, _, _, _, _]

Show answer

Answer: Row4[4]=11, Row2[2]=53, Row5[2]=7, Row4[2]=12, Row5[5]=1, Row5[1]=10, Row5[3]=5, Row5[4]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [109]
  • [56,53]
  • [29,27,26]
  • [17,12,15,11]
  • [10,7,5,10,1]
Base
  • 10
  • 7
  • 5
  • 10
  • 1
TopValue
109
HiddenCells
  • {"r":3,"c":3,"v":11}
  • {"r":1,"c":1,"v":53}
  • {"r":4,"c":1,"v":7}
  • {"r":3,"c":1,"v":12}
  • {"r":4,"c":4,"v":1}
  • {"r":4,"c":0,"v":10}
  • {"r":4,"c":2,"v":5}
  • {"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): [_] → [67, 56] → [34, _, _] → [16, 18, 15, _] → [_, _, 9, _, _]

Show answer

Answer: Row3[3]=23, Row5[2]=9, Row5[5]=2, Row3[2]=33, Row1[1]=123, Row5[1]=7, Row4[4]=8, Row5[4]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [123]
  • [67,56]
  • [34,33,23]
  • [16,18,15,8]
  • [7,9,9,6,2]
Base
  • 7
  • 9
  • 9
  • 6
  • 2
TopValue
123
HiddenCells
  • {"r":2,"c":2,"v":23}
  • {"r":4,"c":1,"v":9}
  • {"r":4,"c":4,"v":2}
  • {"r":2,"c":1,"v":33}
  • {"r":0,"c":0,"v":123}
  • {"r":4,"c":0,"v":7}
  • {"r":3,"c":3,"v":8}
  • {"r":4,"c":3,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [49, _] → [_, 20, _] → [18, _, 9, _] → [8, _, 1, _, 9]

Show answer

Answer: Row2[2]=46, Row4[4]=17, Row1[1]=95, Row5[2]=10, Row5[4]=8, Row3[3]=26, Row3[1]=29, Row4[2]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [95]
  • [49,46]
  • [29,20,26]
  • [18,11,9,17]
  • [8,10,1,8,9]
Base
  • 8
  • 10
  • 1
  • 8
  • 9
TopValue
95
HiddenCells
  • {"r":1,"c":1,"v":46}
  • {"r":3,"c":3,"v":17}
  • {"r":0,"c":0,"v":95}
  • {"r":4,"c":1,"v":10}
  • {"r":4,"c":3,"v":8}
  • {"r":2,"c":2,"v":26}
  • {"r":2,"c":0,"v":29}
  • {"r":3,"c":1,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [91] → [40, 51] → [_, _, 28] → [_, _, _, _] → [8, _, _, 8, 5]

Show answer

Answer: Row4[1]=9, Row3[1]=17, Row5[2]=1, Row5[3]=7, Row4[4]=13, Row4[2]=8, Row4[3]=15, Row3[2]=23

SubType
number-pyramid
Difficulty
hard
Levels
  • [91]
  • [40,51]
  • [17,23,28]
  • [9,8,15,13]
  • [8,1,7,8,5]
Base
  • 8
  • 1
  • 7
  • 8
  • 5
TopValue
91
HiddenCells
  • {"r":3,"c":0,"v":9}
  • {"r":2,"c":0,"v":17}
  • {"r":4,"c":1,"v":1}
  • {"r":4,"c":2,"v":7}
  • {"r":3,"c":3,"v":13}
  • {"r":3,"c":1,"v":8}
  • {"r":3,"c":2,"v":15}
  • {"r":2,"c":1,"v":23}