hard Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [46, _] → [26, 20, _] → [15, _, _, 15] → [_, _, 2, _, 8]

Show answer

Answer: Row5[4]=7, Row5[2]=9, Row4[2]=11, Row5[1]=6, Row2[2]=44, Row3[3]=24, Row4[3]=9, Row1[1]=90

SubType
number-pyramid
Difficulty
hard
Levels
  • [90]
  • [46,44]
  • [26,20,24]
  • [15,11,9,15]
  • [6,9,2,7,8]
Base
  • 6
  • 9
  • 2
  • 7
  • 8
TopValue
90
HiddenCells
  • {"r":4,"c":3,"v":7}
  • {"r":4,"c":1,"v":9}
  • {"r":3,"c":1,"v":11}
  • {"r":4,"c":0,"v":6}
  • {"r":1,"c":1,"v":44}
  • {"r":2,"c":2,"v":24}
  • {"r":3,"c":2,"v":9}
  • {"r":0,"c":0,"v":90}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [22, _, 27] → [_, 7, 10, _] → [_, 6, 1, 9, _]

Show answer

Answer: Row3[2]=17, Row2[2]=44, Row5[5]=8, Row4[4]=17, Row4[1]=15, Row1[1]=83, Row5[1]=9, Row2[1]=39

SubType
number-pyramid
Difficulty
hard
Levels
  • [83]
  • [39,44]
  • [22,17,27]
  • [15,7,10,17]
  • [9,6,1,9,8]
Base
  • 9
  • 6
  • 1
  • 9
  • 8
TopValue
83
HiddenCells
  • {"r":2,"c":1,"v":17}
  • {"r":1,"c":1,"v":44}
  • {"r":4,"c":4,"v":8}
  • {"r":3,"c":3,"v":17}
  • {"r":3,"c":0,"v":15}
  • {"r":0,"c":0,"v":83}
  • {"r":4,"c":0,"v":9}
  • {"r":1,"c":0,"v":39}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [32, 22] → [21, _, _] → [_, _, 2, _] → [_, 8, 1, _, 8]

Show answer

Answer: Row4[2]=9, Row3[3]=11, Row3[2]=11, Row1[1]=54, Row5[1]=4, Row5[4]=1, Row4[1]=12, Row4[4]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [54]
  • [32,22]
  • [21,11,11]
  • [12,9,2,9]
  • [4,8,1,1,8]
Base
  • 4
  • 8
  • 1
  • 1
  • 8
TopValue
54
HiddenCells
  • {"r":3,"c":1,"v":9}
  • {"r":2,"c":2,"v":11}
  • {"r":2,"c":1,"v":11}
  • {"r":0,"c":0,"v":54}
  • {"r":4,"c":0,"v":4}
  • {"r":4,"c":3,"v":1}
  • {"r":3,"c":0,"v":12}
  • {"r":3,"c":3,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 32] → [_, _, _] → [14, 8, 7, _] → [7, 7, 1, _, _]

Show answer

Answer: Row5[4]=6, Row4[4]=10, Row2[1]=37, Row5[5]=4, Row1[1]=69, Row3[2]=15, Row3[3]=17, Row3[1]=22

SubType
number-pyramid
Difficulty
hard
Levels
  • [69]
  • [37,32]
  • [22,15,17]
  • [14,8,7,10]
  • [7,7,1,6,4]
Base
  • 7
  • 7
  • 1
  • 6
  • 4
TopValue
69
HiddenCells
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":3,"v":10}
  • {"r":1,"c":0,"v":37}
  • {"r":4,"c":4,"v":4}
  • {"r":0,"c":0,"v":69}
  • {"r":2,"c":1,"v":15}
  • {"r":2,"c":2,"v":17}
  • {"r":2,"c":0,"v":22}