hard Set 99 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [27, 19, _] → [_, 11, _, 11] → [6, _, _, 7, 4]

Show answer

Answer: Row4[3]=8, Row4[1]=16, Row2[2]=38, Row3[3]=19, Row1[1]=84, Row2[1]=46, Row5[3]=1, Row5[2]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [84]
  • [46,38]
  • [27,19,19]
  • [16,11,8,11]
  • [6,10,1,7,4]
Base
  • 6
  • 10
  • 1
  • 7
  • 4
TopValue
84
HiddenCells
  • {"r":3,"c":2,"v":8}
  • {"r":3,"c":0,"v":16}
  • {"r":1,"c":1,"v":38}
  • {"r":2,"c":2,"v":19}
  • {"r":0,"c":0,"v":84}
  • {"r":1,"c":0,"v":46}
  • {"r":4,"c":2,"v":1}
  • {"r":4,"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): [129] → [_, _] → [27, _, 34] → [11, 16, 18, _] → [_, 8, _, _, _]

Show answer

Answer: Row2[2]=68, Row5[1]=3, Row3[2]=34, Row5[3]=8, Row5[5]=6, Row5[4]=10, Row2[1]=61, Row4[4]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [129]
  • [61,68]
  • [27,34,34]
  • [11,16,18,16]
  • [3,8,8,10,6]
Base
  • 3
  • 8
  • 8
  • 10
  • 6
TopValue
129
HiddenCells
  • {"r":1,"c":1,"v":68}
  • {"r":4,"c":0,"v":3}
  • {"r":2,"c":1,"v":34}
  • {"r":4,"c":2,"v":8}
  • {"r":4,"c":4,"v":6}
  • {"r":4,"c":3,"v":10}
  • {"r":1,"c":0,"v":61}
  • {"r":3,"c":3,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [109] → [64, _] → [37, _, _] → [_, 18, 9, 9] → [9, _, _, _, _]

Show answer

Answer: Row3[3]=18, Row5[3]=8, Row5[5]=8, Row4[1]=19, Row5[2]=10, Row2[2]=45, Row3[2]=27, Row5[4]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [109]
  • [64,45]
  • [37,27,18]
  • [19,18,9,9]
  • [9,10,8,1,8]
Base
  • 9
  • 10
  • 8
  • 1
  • 8
TopValue
109
HiddenCells
  • {"r":2,"c":2,"v":18}
  • {"r":4,"c":2,"v":8}
  • {"r":4,"c":4,"v":8}
  • {"r":3,"c":0,"v":19}
  • {"r":4,"c":1,"v":10}
  • {"r":1,"c":1,"v":45}
  • {"r":2,"c":1,"v":27}
  • {"r":4,"c":3,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, 17] → [16, _, _, 12] → [8, 8, 1, 4, _]

Show answer

Answer: Row1[1]=70, Row2[1]=39, Row4[3]=5, Row5[5]=8, Row3[2]=14, Row4[2]=9, Row2[2]=31, Row3[1]=25

SubType
number-pyramid
Difficulty
hard
Levels
  • [70]
  • [39,31]
  • [25,14,17]
  • [16,9,5,12]
  • [8,8,1,4,8]
Base
  • 8
  • 8
  • 1
  • 4
  • 8
TopValue
70
HiddenCells
  • {"r":0,"c":0,"v":70}
  • {"r":1,"c":0,"v":39}
  • {"r":3,"c":2,"v":5}
  • {"r":4,"c":4,"v":8}
  • {"r":2,"c":1,"v":14}
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":1,"v":31}
  • {"r":2,"c":0,"v":25}