medium Set 87 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [16, _] → [10, 6, _] → [7, _, _, 3]

Show answer

Answer: Row4[3]=3, Row3[3]=6, Row4[2]=3, Row2[2]=12

SubType
number-pyramid
Difficulty
medium
Levels
  • [28]
  • [16,12]
  • [10,6,6]
  • [7,3,3,3]
Base
  • 7
  • 3
  • 3
  • 3
TopValue
28
HiddenCells
  • {"r":3,"c":2,"v":3}
  • {"r":2,"c":2,"v":6}
  • {"r":3,"c":1,"v":3}
  • {"r":1,"c":1,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [47] → [20, 27] → [10, _, 17] → [_, _, 9, _]

Show answer

Answer: Row4[4]=8, Row4[1]=9, Row4[2]=1, Row3[2]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [47]
  • [20,27]
  • [10,10,17]
  • [9,1,9,8]
Base
  • 9
  • 1
  • 9
  • 8
TopValue
47
HiddenCells
  • {"r":3,"c":3,"v":8}
  • {"r":3,"c":0,"v":9}
  • {"r":3,"c":1,"v":1}
  • {"r":2,"c":1,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [17, 19] → [10, 7, _] → [_, 4, 3, _]

Show answer

Answer: Row4[1]=6, Row3[3]=12, Row4[4]=9, Row1[1]=36

SubType
number-pyramid
Difficulty
medium
Levels
  • [36]
  • [17,19]
  • [10,7,12]
  • [6,4,3,9]
Base
  • 6
  • 4
  • 3
  • 9
TopValue
36
HiddenCells
  • {"r":3,"c":0,"v":6}
  • {"r":2,"c":2,"v":12}
  • {"r":3,"c":3,"v":9}
  • {"r":0,"c":0,"v":36}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [40] → [27, 13] → [_, _, 4] → [_, 8, _, 3]

Show answer

Answer: Row3[1]=18, Row4[3]=1, Row4[1]=10, Row3[2]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [40]
  • [27,13]
  • [18,9,4]
  • [10,8,1,3]
Base
  • 10
  • 8
  • 1
  • 3
TopValue
40
HiddenCells
  • {"r":2,"c":0,"v":18}
  • {"r":3,"c":2,"v":1}
  • {"r":3,"c":0,"v":10}
  • {"r":2,"c":1,"v":9}