hard Set 21 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [53, 49] → [26, _, 22] → [11, 15, _, 10] → [_, _, _, _, _]

Show answer

Answer: Row3[2]=27, Row5[4]=4, Row1[1]=102, Row5[2]=7, Row5[3]=8, Row5[1]=4, Row4[3]=12, Row5[5]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [102]
  • [53,49]
  • [26,27,22]
  • [11,15,12,10]
  • [4,7,8,4,6]
Base
  • 4
  • 7
  • 8
  • 4
  • 6
TopValue
102
HiddenCells
  • {"r":2,"c":1,"v":27}
  • {"r":4,"c":3,"v":4}
  • {"r":0,"c":0,"v":102}
  • {"r":4,"c":1,"v":7}
  • {"r":4,"c":2,"v":8}
  • {"r":4,"c":0,"v":4}
  • {"r":3,"c":2,"v":12}
  • {"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): [113] → [_, _] → [16, _, 37] → [_, 11, _, _] → [4, _, _, 9, 9]

Show answer

Answer: Row2[2]=67, Row4[3]=19, Row3[2]=30, Row4[4]=18, Row2[1]=46, Row5[2]=1, Row4[1]=5, Row5[3]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [113]
  • [46,67]
  • [16,30,37]
  • [5,11,19,18]
  • [4,1,10,9,9]
Base
  • 4
  • 1
  • 10
  • 9
  • 9
TopValue
113
HiddenCells
  • {"r":1,"c":1,"v":67}
  • {"r":3,"c":2,"v":19}
  • {"r":2,"c":1,"v":30}
  • {"r":3,"c":3,"v":18}
  • {"r":1,"c":0,"v":46}
  • {"r":4,"c":1,"v":1}
  • {"r":3,"c":0,"v":5}
  • {"r":4,"c":2,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [17, 9, _] → [11, 6, 3, _] → [7, _, _, 1, _]

Show answer

Answer: Row5[5]=6, Row1[1]=45, Row3[3]=10, Row4[4]=7, Row5[3]=2, Row5[2]=4, Row2[2]=19, Row2[1]=26

SubType
number-pyramid
Difficulty
hard
Levels
  • [45]
  • [26,19]
  • [17,9,10]
  • [11,6,3,7]
  • [7,4,2,1,6]
Base
  • 7
  • 4
  • 2
  • 1
  • 6
TopValue
45
HiddenCells
  • {"r":4,"c":4,"v":6}
  • {"r":0,"c":0,"v":45}
  • {"r":2,"c":2,"v":10}
  • {"r":3,"c":3,"v":7}
  • {"r":4,"c":2,"v":2}
  • {"r":4,"c":1,"v":4}
  • {"r":1,"c":1,"v":19}
  • {"r":1,"c":0,"v":26}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [99] → [40, _] → [_, 24, _] → [_, 9, 15, _] → [_, _, _, 10, 10]

Show answer

Answer: Row4[1]=7, Row5[2]=4, Row5[1]=3, Row3[3]=35, Row4[4]=20, Row3[1]=16, Row5[3]=5, Row2[2]=59

SubType
number-pyramid
Difficulty
hard
Levels
  • [99]
  • [40,59]
  • [16,24,35]
  • [7,9,15,20]
  • [3,4,5,10,10]
Base
  • 3
  • 4
  • 5
  • 10
  • 10
TopValue
99
HiddenCells
  • {"r":3,"c":0,"v":7}
  • {"r":4,"c":1,"v":4}
  • {"r":4,"c":0,"v":3}
  • {"r":2,"c":2,"v":35}
  • {"r":3,"c":3,"v":20}
  • {"r":2,"c":0,"v":16}
  • {"r":4,"c":2,"v":5}
  • {"r":1,"c":1,"v":59}