medium Set 27 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [42] → [15, _] → [5, 10, 17] → [_, _, _, 9]

Show answer

Answer: Row4[3]=8, Row4[1]=3, Row4[2]=2, Row2[2]=27

SubType
number-pyramid
Difficulty
medium
Levels
  • [42]
  • [15,27]
  • [5,10,17]
  • [3,2,8,9]
Base
  • 3
  • 2
  • 8
  • 9
TopValue
42
HiddenCells
  • {"r":3,"c":2,"v":8}
  • {"r":3,"c":0,"v":3}
  • {"r":3,"c":1,"v":2}
  • {"r":1,"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): [_] → [_, _] → [12, 15, 8] → [2, 10, _, 3]

Show answer

Answer: Row1[1]=50, Row4[3]=5, Row2[2]=23, Row2[1]=27

SubType
number-pyramid
Difficulty
medium
Levels
  • [50]
  • [27,23]
  • [12,15,8]
  • [2,10,5,3]
Base
  • 2
  • 10
  • 5
  • 3
TopValue
50
HiddenCells
  • {"r":0,"c":0,"v":50}
  • {"r":3,"c":2,"v":5}
  • {"r":1,"c":1,"v":23}
  • {"r":1,"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): [_] → [_, 15] → [7, 6, 9] → [_, 2, 4, _]

Show answer

Answer: Row1[1]=28, Row4[1]=5, Row4[4]=5, Row2[1]=13

SubType
number-pyramid
Difficulty
medium
Levels
  • [28]
  • [13,15]
  • [7,6,9]
  • [5,2,4,5]
Base
  • 5
  • 2
  • 4
  • 5
TopValue
28
HiddenCells
  • {"r":0,"c":0,"v":28}
  • {"r":3,"c":0,"v":5}
  • {"r":3,"c":3,"v":5}
  • {"r":1,"c":0,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [28, _] → [_, _, 12] → [3, 8, 9, 3]

Show answer

Answer: Row1[1]=57, Row3[2]=17, Row3[1]=11, Row2[2]=29

SubType
number-pyramid
Difficulty
medium
Levels
  • [57]
  • [28,29]
  • [11,17,12]
  • [3,8,9,3]
Base
  • 3
  • 8
  • 9
  • 3
TopValue
57
HiddenCells
  • {"r":0,"c":0,"v":57}
  • {"r":2,"c":1,"v":17}
  • {"r":2,"c":0,"v":11}
  • {"r":1,"c":1,"v":29}