medium Set 99 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [46] → [_, 25] → [11, 10, _] → [_, 1, 9, _]

Show answer

Answer: Row2[1]=21, Row4[4]=6, Row3[3]=15, Row4[1]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [46]
  • [21,25]
  • [11,10,15]
  • [10,1,9,6]
Base
  • 10
  • 1
  • 9
  • 6
TopValue
46
HiddenCells
  • {"r":1,"c":0,"v":21}
  • {"r":3,"c":3,"v":6}
  • {"r":2,"c":2,"v":15}
  • {"r":3,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 25] → [10, _, 12] → [_, 8, 5, 7]

Show answer

Answer: Row4[1]=2, Row3[2]=13, Row1[1]=48, Row2[1]=23

SubType
number-pyramid
Difficulty
medium
Levels
  • [48]
  • [23,25]
  • [10,13,12]
  • [2,8,5,7]
Base
  • 2
  • 8
  • 5
  • 7
TopValue
48
HiddenCells
  • {"r":3,"c":0,"v":2}
  • {"r":2,"c":1,"v":13}
  • {"r":0,"c":0,"v":48}
  • {"r":1,"c":0,"v":23}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 29] → [15, 17, 12] → [6, _, _, 4]

Show answer

Answer: Row4[2]=9, Row1[1]=61, Row2[1]=32, Row4[3]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [61]
  • [32,29]
  • [15,17,12]
  • [6,9,8,4]
Base
  • 6
  • 9
  • 8
  • 4
TopValue
61
HiddenCells
  • {"r":3,"c":1,"v":9}
  • {"r":0,"c":0,"v":61}
  • {"r":1,"c":0,"v":32}
  • {"r":3,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [24, 25] → [_, 13, 12] → [_, 4, 9, _]

Show answer

Answer: Row3[1]=11, Row1[1]=49, Row4[4]=3, Row4[1]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [24,25]
  • [11,13,12]
  • [7,4,9,3]
Base
  • 7
  • 4
  • 9
  • 3
TopValue
49
HiddenCells
  • {"r":2,"c":0,"v":11}
  • {"r":0,"c":0,"v":49}
  • {"r":3,"c":3,"v":3}
  • {"r":3,"c":0,"v":7}