medium Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [32] → [21, 11] → [_, 9, _] → [4, _, _, 1]

Show answer

Answer: Row4[3]=1, Row3[3]=2, Row3[1]=12, Row4[2]=8

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 16] → [_, 7, 9] → [_, 1, 6, 3]

Show answer

Answer: Row2[1]=11, Row3[1]=4, Row4[1]=3, Row1[1]=27

SubType
number-pyramid
Difficulty
medium
Levels
  • [27]
  • [11,16]
  • [4,7,9]
  • [3,1,6,3]
Base
  • 3
  • 1
  • 6
  • 3
TopValue
27
HiddenCells
  • {"r":1,"c":0,"v":11}
  • {"r":2,"c":0,"v":4}
  • {"r":3,"c":0,"v":3}
  • {"r":0,"c":0,"v":27}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [68] → [34, _] → [17, _, 17] → [8, _, 8, _]

Show answer

Answer: Row4[2]=9, Row4[4]=9, Row2[2]=34, Row3[2]=17

SubType
number-pyramid
Difficulty
medium
Levels
  • [68]
  • [34,34]
  • [17,17,17]
  • [8,9,8,9]
Base
  • 8
  • 9
  • 8
  • 9
TopValue
68
HiddenCells
  • {"r":3,"c":1,"v":9}
  • {"r":3,"c":3,"v":9}
  • {"r":1,"c":1,"v":34}
  • {"r":2,"c":1,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 23] → [12, 14, 9] → [_, _, 8, 1]

Show answer

Answer: Row4[1]=6, Row4[2]=6, Row2[1]=26, Row1[1]=49

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [26,23]
  • [12,14,9]
  • [6,6,8,1]
Base
  • 6
  • 6
  • 8
  • 1
TopValue
49
HiddenCells
  • {"r":3,"c":0,"v":6}
  • {"r":3,"c":1,"v":6}
  • {"r":1,"c":0,"v":26}
  • {"r":0,"c":0,"v":49}