hard Set 20 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [48, _] → [23, _, _] → [_, _, 12, 6] → [_, _, 10, 2, 4]

Show answer

Answer: Row1[1]=91, Row4[2]=13, Row2[2]=43, Row3[3]=18, Row5[1]=7, Row5[2]=3, Row3[2]=25, Row4[1]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [91]
  • [48,43]
  • [23,25,18]
  • [10,13,12,6]
  • [7,3,10,2,4]
Base
  • 7
  • 3
  • 10
  • 2
  • 4
TopValue
91
HiddenCells
  • {"r":0,"c":0,"v":91}
  • {"r":3,"c":1,"v":13}
  • {"r":1,"c":1,"v":43}
  • {"r":2,"c":2,"v":18}
  • {"r":4,"c":0,"v":7}
  • {"r":4,"c":1,"v":3}
  • {"r":2,"c":1,"v":25}
  • {"r":3,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 39] → [27, 21, 18] → [_, 14, _, _] → [_, _, 4, _, 8]

Show answer

Answer: Row4[1]=13, Row5[2]=10, Row5[4]=3, Row5[1]=3, Row4[3]=7, Row1[1]=87, Row2[1]=48, Row4[4]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [87]
  • [48,39]
  • [27,21,18]
  • [13,14,7,11]
  • [3,10,4,3,8]
Base
  • 3
  • 10
  • 4
  • 3
  • 8
TopValue
87
HiddenCells
  • {"r":3,"c":0,"v":13}
  • {"r":4,"c":1,"v":10}
  • {"r":4,"c":3,"v":3}
  • {"r":4,"c":0,"v":3}
  • {"r":3,"c":2,"v":7}
  • {"r":0,"c":0,"v":87}
  • {"r":1,"c":0,"v":48}
  • {"r":3,"c":3,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [76] → [_, 43] → [14, _, _] → [_, _, _, _] → [_, 3, 5, 6, 7]

Show answer

Answer: Row4[2]=8, Row4[1]=6, Row3[3]=24, Row2[1]=33, Row5[1]=3, Row3[2]=19, Row4[4]=13, Row4[3]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [76]
  • [33,43]
  • [14,19,24]
  • [6,8,11,13]
  • [3,3,5,6,7]
Base
  • 3
  • 3
  • 5
  • 6
  • 7
TopValue
76
HiddenCells
  • {"r":3,"c":1,"v":8}
  • {"r":3,"c":0,"v":6}
  • {"r":2,"c":2,"v":24}
  • {"r":1,"c":0,"v":33}
  • {"r":4,"c":0,"v":3}
  • {"r":2,"c":1,"v":19}
  • {"r":3,"c":3,"v":13}
  • {"r":3,"c":2,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [38, 43] → [_, _, 22] → [_, _, 12, 10] → [_, _, 8, 4, _]

Show answer

Answer: Row4[1]=8, Row3[2]=21, Row5[2]=1, Row5[5]=6, Row1[1]=81, Row4[2]=9, Row5[1]=7, Row3[1]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [38,43]
  • [17,21,22]
  • [8,9,12,10]
  • [7,1,8,4,6]
Base
  • 7
  • 1
  • 8
  • 4
  • 6
TopValue
81
HiddenCells
  • {"r":3,"c":0,"v":8}
  • {"r":2,"c":1,"v":21}
  • {"r":4,"c":1,"v":1}
  • {"r":4,"c":4,"v":6}
  • {"r":0,"c":0,"v":81}
  • {"r":3,"c":1,"v":9}
  • {"r":4,"c":0,"v":7}
  • {"r":2,"c":0,"v":17}