hard Set 18 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [99] → [_, _] → [_, 25, _] → [_, _, _, 8] → [10, 6, 9, _, 7]

Show answer

Answer: Row2[1]=56, Row4[3]=10, Row2[2]=43, Row3[1]=31, Row4[1]=16, Row3[3]=18, Row4[2]=15, Row5[4]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [99]
  • [56,43]
  • [31,25,18]
  • [16,15,10,8]
  • [10,6,9,1,7]
Base
  • 10
  • 6
  • 9
  • 1
  • 7
TopValue
99
HiddenCells
  • {"r":1,"c":0,"v":56}
  • {"r":3,"c":2,"v":10}
  • {"r":1,"c":1,"v":43}
  • {"r":2,"c":0,"v":31}
  • {"r":3,"c":0,"v":16}
  • {"r":2,"c":2,"v":18}
  • {"r":3,"c":1,"v":15}
  • {"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): [_] → [44, 50] → [17, _, _] → [_, _, 15, 8] → [_, _, 10, _, 3]

Show answer

Answer: Row4[1]=5, Row5[4]=5, Row5[2]=2, Row3[3]=23, Row3[2]=27, Row1[1]=94, Row5[1]=3, Row4[2]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [94]
  • [44,50]
  • [17,27,23]
  • [5,12,15,8]
  • [3,2,10,5,3]
Base
  • 3
  • 2
  • 10
  • 5
  • 3
TopValue
94
HiddenCells
  • {"r":3,"c":0,"v":5}
  • {"r":4,"c":3,"v":5}
  • {"r":4,"c":1,"v":2}
  • {"r":2,"c":2,"v":23}
  • {"r":2,"c":1,"v":27}
  • {"r":0,"c":0,"v":94}
  • {"r":4,"c":0,"v":3}
  • {"r":3,"c":1,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 50] → [34, _, 21] → [_, 19, _, _] → [5, _, _, 1, 10]

Show answer

Answer: Row3[2]=29, Row4[4]=11, Row5[2]=10, Row4[1]=15, Row1[1]=113, Row5[3]=9, Row4[3]=10, Row2[1]=63

SubType
number-pyramid
Difficulty
hard
Levels
  • [113]
  • [63,50]
  • [34,29,21]
  • [15,19,10,11]
  • [5,10,9,1,10]
Base
  • 5
  • 10
  • 9
  • 1
  • 10
TopValue
113
HiddenCells
  • {"r":2,"c":1,"v":29}
  • {"r":3,"c":3,"v":11}
  • {"r":4,"c":1,"v":10}
  • {"r":3,"c":0,"v":15}
  • {"r":0,"c":0,"v":113}
  • {"r":4,"c":2,"v":9}
  • {"r":3,"c":2,"v":10}
  • {"r":1,"c":0,"v":63}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [47, _] → [_, _, _] → [18, 11, _, 13] → [10, 8, 3, _, _]

Show answer

Answer: Row1[1]=85, Row4[3]=7, Row3[2]=18, Row3[1]=29, Row5[4]=4, Row2[2]=38, Row5[5]=9, Row3[3]=20

SubType
number-pyramid
Difficulty
hard
Levels
  • [85]
  • [47,38]
  • [29,18,20]
  • [18,11,7,13]
  • [10,8,3,4,9]
Base
  • 10
  • 8
  • 3
  • 4
  • 9
TopValue
85
HiddenCells
  • {"r":0,"c":0,"v":85}
  • {"r":3,"c":2,"v":7}
  • {"r":2,"c":1,"v":18}
  • {"r":2,"c":0,"v":29}
  • {"r":4,"c":3,"v":4}
  • {"r":1,"c":1,"v":38}
  • {"r":4,"c":4,"v":9}
  • {"r":2,"c":2,"v":20}