medium Set 72 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [48] → [27, _] → [17, 10, _] → [_, 7, _, 8]

Show answer

Answer: Row2[2]=21, Row3[3]=11, Row4[3]=3, Row4[1]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [48]
  • [27,21]
  • [17,10,11]
  • [10,7,3,8]
Base
  • 10
  • 7
  • 3
  • 8
TopValue
48
HiddenCells
  • {"r":1,"c":1,"v":21}
  • {"r":2,"c":2,"v":11}
  • {"r":3,"c":2,"v":3}
  • {"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): [31] → [16, 15] → [7, 9, _] → [2, _, _, _]

Show answer

Answer: Row4[3]=4, Row4[4]=2, Row3[3]=6, Row4[2]=5

SubType
number-pyramid
Difficulty
medium
Levels
  • [31]
  • [16,15]
  • [7,9,6]
  • [2,5,4,2]
Base
  • 2
  • 5
  • 4
  • 2
TopValue
31
HiddenCells
  • {"r":3,"c":2,"v":4}
  • {"r":3,"c":3,"v":2}
  • {"r":2,"c":2,"v":6}
  • {"r":3,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [34] → [20, 14] → [_, 6, _] → [9, _, 1, _]

Show answer

Answer: Row3[3]=8, Row4[4]=7, Row4[2]=5, Row3[1]=14

SubType
number-pyramid
Difficulty
medium
Levels
  • [34]
  • [20,14]
  • [14,6,8]
  • [9,5,1,7]
Base
  • 9
  • 5
  • 1
  • 7
TopValue
34
HiddenCells
  • {"r":2,"c":2,"v":8}
  • {"r":3,"c":3,"v":7}
  • {"r":3,"c":1,"v":5}
  • {"r":2,"c":0,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [43] → [18, _] → [9, _, 16] → [6, _, _, 10]

Show answer

Answer: Row2[2]=25, Row3[2]=9, Row4[2]=3, Row4[3]=6

SubType
number-pyramid
Difficulty
medium
Levels
  • [43]
  • [18,25]
  • [9,9,16]
  • [6,3,6,10]
Base
  • 6
  • 3
  • 6
  • 10
TopValue
43
HiddenCells
  • {"r":1,"c":1,"v":25}
  • {"r":2,"c":1,"v":9}
  • {"r":3,"c":1,"v":3}
  • {"r":3,"c":2,"v":6}