hard Set 11 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [124] → [_, _] → [26, _, _] → [13, _, _, 18] → [9, 4, 9, _, _]

Show answer

Answer: Row3[2]=31, Row2[2]=67, Row5[5]=9, Row5[4]=9, Row4[2]=13, Row4[3]=18, Row2[1]=57, Row3[3]=36

SubType
number-pyramid
Difficulty
hard
Levels
  • [124]
  • [57,67]
  • [26,31,36]
  • [13,13,18,18]
  • [9,4,9,9,9]
Base
  • 9
  • 4
  • 9
  • 9
  • 9
TopValue
124
HiddenCells
  • {"r":2,"c":1,"v":31}
  • {"r":1,"c":1,"v":67}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":3,"v":9}
  • {"r":3,"c":1,"v":13}
  • {"r":3,"c":2,"v":18}
  • {"r":1,"c":0,"v":57}
  • {"r":2,"c":2,"v":36}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [67] → [_, _] → [_, _, 8] → [_, _, _, 3] → [5, 8, 4, 1, _]

Show answer

Answer: Row4[1]=13, Row2[1]=42, Row3[2]=17, Row4[2]=12, Row4[3]=5, Row5[5]=2, Row3[1]=25, Row2[2]=25

SubType
number-pyramid
Difficulty
hard
Levels
  • [67]
  • [42,25]
  • [25,17,8]
  • [13,12,5,3]
  • [5,8,4,1,2]
Base
  • 5
  • 8
  • 4
  • 1
  • 2
TopValue
67
HiddenCells
  • {"r":3,"c":0,"v":13}
  • {"r":1,"c":0,"v":42}
  • {"r":2,"c":1,"v":17}
  • {"r":3,"c":1,"v":12}
  • {"r":3,"c":2,"v":5}
  • {"r":4,"c":4,"v":2}
  • {"r":2,"c":0,"v":25}
  • {"r":1,"c":1,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 21, 26] → [_, 8, _, 13] → [8, 4, _, _, 4]

Show answer

Answer: Row4[1]=12, Row1[1]=88, Row2[1]=41, Row5[4]=9, Row5[3]=4, Row2[2]=47, Row4[3]=13, Row3[1]=20

SubType
number-pyramid
Difficulty
hard
Levels
  • [88]
  • [41,47]
  • [20,21,26]
  • [12,8,13,13]
  • [8,4,4,9,4]
Base
  • 8
  • 4
  • 4
  • 9
  • 4
TopValue
88
HiddenCells
  • {"r":3,"c":0,"v":12}
  • {"r":0,"c":0,"v":88}
  • {"r":1,"c":0,"v":41}
  • {"r":4,"c":3,"v":9}
  • {"r":4,"c":2,"v":4}
  • {"r":1,"c":1,"v":47}
  • {"r":3,"c":2,"v":13}
  • {"r":2,"c":0,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [48, _] → [17, 31, _] → [_, 11, _, 19] → [_, 1, _, 10, _]

Show answer

Answer: Row3[3]=39, Row5[5]=9, Row5[3]=10, Row5[1]=5, Row2[2]=70, Row4[3]=20, Row1[1]=118, Row4[1]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [118]
  • [48,70]
  • [17,31,39]
  • [6,11,20,19]
  • [5,1,10,10,9]
Base
  • 5
  • 1
  • 10
  • 10
  • 9
TopValue
118
HiddenCells
  • {"r":2,"c":2,"v":39}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":2,"v":10}
  • {"r":4,"c":0,"v":5}
  • {"r":1,"c":1,"v":70}
  • {"r":3,"c":2,"v":20}
  • {"r":0,"c":0,"v":118}
  • {"r":3,"c":0,"v":6}