hard Set 61 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [54, _] → [27, _, _] → [13, _, _, _] → [3, 10, 4, 9, _]

Show answer

Answer: Row5[5]=3, Row4[4]=12, Row1[1]=106, Row3[3]=25, Row4[2]=14, Row4[3]=13, Row2[2]=52, Row3[2]=27

SubType
number-pyramid
Difficulty
hard
Levels
  • [106]
  • [54,52]
  • [27,27,25]
  • [13,14,13,12]
  • [3,10,4,9,3]
Base
  • 3
  • 10
  • 4
  • 9
  • 3
TopValue
106
HiddenCells
  • {"r":4,"c":4,"v":3}
  • {"r":3,"c":3,"v":12}
  • {"r":0,"c":0,"v":106}
  • {"r":2,"c":2,"v":25}
  • {"r":3,"c":1,"v":14}
  • {"r":3,"c":2,"v":13}
  • {"r":1,"c":1,"v":52}
  • {"r":2,"c":1,"v":27}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 79] → [_, 40, _] → [_, _, 20, 19] → [7, 10, _, 10, _]

Show answer

Answer: Row3[3]=39, Row1[1]=156, Row4[1]=17, Row5[5]=9, Row4[2]=20, Row5[3]=10, Row3[1]=37, Row2[1]=77

SubType
number-pyramid
Difficulty
hard
Levels
  • [156]
  • [77,79]
  • [37,40,39]
  • [17,20,20,19]
  • [7,10,10,10,9]
Base
  • 7
  • 10
  • 10
  • 10
  • 9
TopValue
156
HiddenCells
  • {"r":2,"c":2,"v":39}
  • {"r":0,"c":0,"v":156}
  • {"r":3,"c":0,"v":17}
  • {"r":4,"c":4,"v":9}
  • {"r":3,"c":1,"v":20}
  • {"r":4,"c":2,"v":10}
  • {"r":2,"c":0,"v":37}
  • {"r":1,"c":0,"v":77}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [28, 26, 13] → [_, _, 11, 2] → [_, _, 10, _, 1]

Show answer

Answer: Row5[2]=5, Row4[2]=15, Row2[1]=54, Row1[1]=93, Row5[4]=1, Row4[1]=13, Row5[1]=8, Row2[2]=39

SubType
number-pyramid
Difficulty
hard
Levels
  • [93]
  • [54,39]
  • [28,26,13]
  • [13,15,11,2]
  • [8,5,10,1,1]
Base
  • 8
  • 5
  • 10
  • 1
  • 1
TopValue
93
HiddenCells
  • {"r":4,"c":1,"v":5}
  • {"r":3,"c":1,"v":15}
  • {"r":1,"c":0,"v":54}
  • {"r":0,"c":0,"v":93}
  • {"r":4,"c":3,"v":1}
  • {"r":3,"c":0,"v":13}
  • {"r":4,"c":0,"v":8}
  • {"r":1,"c":1,"v":39}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [30, 21, _] → [17, 13, 8, _] → [7, 10, _, _, _]

Show answer

Answer: Row4[4]=9, Row2[1]=51, Row3[3]=17, Row2[2]=38, Row5[3]=3, Row5[5]=4, Row1[1]=89, Row5[4]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [89]
  • [51,38]
  • [30,21,17]
  • [17,13,8,9]
  • [7,10,3,5,4]
Base
  • 7
  • 10
  • 3
  • 5
  • 4
TopValue
89
HiddenCells
  • {"r":3,"c":3,"v":9}
  • {"r":1,"c":0,"v":51}
  • {"r":2,"c":2,"v":17}
  • {"r":1,"c":1,"v":38}
  • {"r":4,"c":2,"v":3}
  • {"r":4,"c":4,"v":4}
  • {"r":0,"c":0,"v":89}
  • {"r":4,"c":3,"v":5}