hard Set 15 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [113] → [57, _] → [_, 32, 24] → [_, 17, _, _] → [1, _, _, _, 4]

Show answer

Answer: Row5[2]=7, Row5[4]=5, Row5[3]=10, Row2[2]=56, Row4[4]=9, Row4[1]=8, Row4[3]=15, Row3[1]=25

SubType
number-pyramid
Difficulty
hard
Levels
  • [113]
  • [57,56]
  • [25,32,24]
  • [8,17,15,9]
  • [1,7,10,5,4]
Base
  • 1
  • 7
  • 10
  • 5
  • 4
TopValue
113
HiddenCells
  • {"r":4,"c":1,"v":7}
  • {"r":4,"c":3,"v":5}
  • {"r":4,"c":2,"v":10}
  • {"r":1,"c":1,"v":56}
  • {"r":3,"c":3,"v":9}
  • {"r":3,"c":0,"v":8}
  • {"r":3,"c":2,"v":15}
  • {"r":2,"c":0,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 19, 26] → [9, _, 11, _] → [3, 6, _, 9, _]

Show answer

Answer: Row5[3]=2, Row2[2]=45, Row4[4]=15, Row4[2]=8, Row3[1]=17, Row1[1]=81, Row2[1]=36, Row5[5]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [36,45]
  • [17,19,26]
  • [9,8,11,15]
  • [3,6,2,9,6]
Base
  • 3
  • 6
  • 2
  • 9
  • 6
TopValue
81
HiddenCells
  • {"r":4,"c":2,"v":2}
  • {"r":1,"c":1,"v":45}
  • {"r":3,"c":3,"v":15}
  • {"r":3,"c":1,"v":8}
  • {"r":2,"c":0,"v":17}
  • {"r":0,"c":0,"v":81}
  • {"r":1,"c":0,"v":36}
  • {"r":4,"c":4,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 25, 16] → [_, _, _, 4] → [4, 4, 9, 3, _]

Show answer

Answer: Row3[1]=21, Row5[5]=1, Row2[2]=41, Row4[3]=12, Row2[1]=46, Row4[1]=8, Row4[2]=13, Row1[1]=87

SubType
number-pyramid
Difficulty
hard
Levels
  • [87]
  • [46,41]
  • [21,25,16]
  • [8,13,12,4]
  • [4,4,9,3,1]
Base
  • 4
  • 4
  • 9
  • 3
  • 1
TopValue
87
HiddenCells
  • {"r":2,"c":0,"v":21}
  • {"r":4,"c":4,"v":1}
  • {"r":1,"c":1,"v":41}
  • {"r":3,"c":2,"v":12}
  • {"r":1,"c":0,"v":46}
  • {"r":3,"c":0,"v":8}
  • {"r":3,"c":1,"v":13}
  • {"r":0,"c":0,"v":87}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [93] → [_, _] → [18, _, _] → [9, 9, 13, _] → [_, 5, _, 9, _]

Show answer

Answer: Row5[5]=9, Row2[1]=40, Row3[2]=22, Row5[1]=4, Row5[3]=4, Row4[4]=18, Row3[3]=31, Row2[2]=53

SubType
number-pyramid
Difficulty
hard
Levels
  • [93]
  • [40,53]
  • [18,22,31]
  • [9,9,13,18]
  • [4,5,4,9,9]
Base
  • 4
  • 5
  • 4
  • 9
  • 9
TopValue
93
HiddenCells
  • {"r":4,"c":4,"v":9}
  • {"r":1,"c":0,"v":40}
  • {"r":2,"c":1,"v":22}
  • {"r":4,"c":0,"v":4}
  • {"r":4,"c":2,"v":4}
  • {"r":3,"c":3,"v":18}
  • {"r":2,"c":2,"v":31}
  • {"r":1,"c":1,"v":53}