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): [116] → [49, _] → [20, _, 38] → [10, _, _, _] → [9, 1, _, _, _]

Show answer

Answer: Row4[4]=19, Row2[2]=67, Row3[2]=29, Row4[3]=19, Row4[2]=10, Row5[5]=9, Row5[4]=10, Row5[3]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [116]
  • [49,67]
  • [20,29,38]
  • [10,10,19,19]
  • [9,1,9,10,9]
Base
  • 9
  • 1
  • 9
  • 10
  • 9
TopValue
116
HiddenCells
  • {"r":3,"c":3,"v":19}
  • {"r":1,"c":1,"v":67}
  • {"r":2,"c":1,"v":29}
  • {"r":3,"c":2,"v":19}
  • {"r":3,"c":1,"v":10}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":2,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [34, _] → [16, _, 25] → [8, 8, 10, _] → [5, _, _, _, _]

Show answer

Answer: Row5[2]=3, Row4[4]=15, Row1[1]=77, Row5[5]=10, Row5[4]=5, Row3[2]=18, Row2[2]=43, Row5[3]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [77]
  • [34,43]
  • [16,18,25]
  • [8,8,10,15]
  • [5,3,5,5,10]
Base
  • 5
  • 3
  • 5
  • 5
  • 10
TopValue
77
HiddenCells
  • {"r":4,"c":1,"v":3}
  • {"r":3,"c":3,"v":15}
  • {"r":0,"c":0,"v":77}
  • {"r":4,"c":4,"v":10}
  • {"r":4,"c":3,"v":5}
  • {"r":2,"c":1,"v":18}
  • {"r":1,"c":1,"v":43}
  • {"r":4,"c":2,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [49, 44] → [25, 24, _] → [10, _, _, _] → [1, 9, _, _, _]

Show answer

Answer: Row1[1]=93, Row4[2]=15, Row5[3]=6, Row5[4]=3, Row4[3]=9, Row3[3]=20, Row4[4]=11, Row5[5]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [93]
  • [49,44]
  • [25,24,20]
  • [10,15,9,11]
  • [1,9,6,3,8]
Base
  • 1
  • 9
  • 6
  • 3
  • 8
TopValue
93
HiddenCells
  • {"r":0,"c":0,"v":93}
  • {"r":3,"c":1,"v":15}
  • {"r":4,"c":2,"v":6}
  • {"r":4,"c":3,"v":3}
  • {"r":3,"c":2,"v":9}
  • {"r":2,"c":2,"v":20}
  • {"r":3,"c":3,"v":11}
  • {"r":4,"c":4,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [51, _] → [26, 25, _] → [12, 14, _, _] → [_, 10, _, _, 3]

Show answer

Answer: Row5[1]=2, Row1[1]=97, Row5[4]=7, Row4[4]=10, Row5[3]=4, Row3[3]=21, Row4[3]=11, Row2[2]=46

SubType
number-pyramid
Difficulty
hard
Levels
  • [97]
  • [51,46]
  • [26,25,21]
  • [12,14,11,10]
  • [2,10,4,7,3]
Base
  • 2
  • 10
  • 4
  • 7
  • 3
TopValue
97
HiddenCells
  • {"r":4,"c":0,"v":2}
  • {"r":0,"c":0,"v":97}
  • {"r":4,"c":3,"v":7}
  • {"r":3,"c":3,"v":10}
  • {"r":4,"c":2,"v":4}
  • {"r":2,"c":2,"v":21}
  • {"r":3,"c":2,"v":11}
  • {"r":1,"c":1,"v":46}