medium Set 48 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [15, _] → [_, 4, 5] → [_, 2, 2, 3]

Show answer

Answer: Row1[1]=24, Row2[2]=9, Row3[1]=11, Row4[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [24]
  • [15,9]
  • [11,4,5]
  • [9,2,2,3]
Base
  • 9
  • 2
  • 2
  • 3
TopValue
24
HiddenCells
  • {"r":0,"c":0,"v":24}
  • {"r":1,"c":1,"v":9}
  • {"r":2,"c":0,"v":11}
  • {"r":3,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [16, _] → [_, 7, 5] → [_, 5, _, 3]

Show answer

Answer: Row4[1]=4, Row2[2]=12, Row3[1]=9, Row4[3]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [28]
  • [16,12]
  • [9,7,5]
  • [4,5,2,3]
Base
  • 4
  • 5
  • 2
  • 3
TopValue
28
HiddenCells
  • {"r":3,"c":0,"v":4}
  • {"r":1,"c":1,"v":12}
  • {"r":2,"c":0,"v":9}
  • {"r":3,"c":2,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [35] → [21, 14] → [12, _, _] → [5, _, _, 3]

Show answer

Answer: Row3[2]=9, Row4[2]=7, Row4[3]=2, Row3[3]=5

SubType
number-pyramid
Difficulty
medium
Levels
  • [35]
  • [21,14]
  • [12,9,5]
  • [5,7,2,3]
Base
  • 5
  • 7
  • 2
  • 3
TopValue
35
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":3,"c":1,"v":7}
  • {"r":3,"c":2,"v":2}
  • {"r":2,"c":2,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [18, _] → [12, _, 10] → [9, 3, _, 7]

Show answer

Answer: Row1[1]=34, Row4[3]=3, Row2[2]=16, Row3[2]=6

SubType
number-pyramid
Difficulty
medium
Levels
  • [34]
  • [18,16]
  • [12,6,10]
  • [9,3,3,7]
Base
  • 9
  • 3
  • 3
  • 7
TopValue
34
HiddenCells
  • {"r":0,"c":0,"v":34}
  • {"r":3,"c":2,"v":3}
  • {"r":1,"c":1,"v":16}
  • {"r":2,"c":1,"v":6}