hard Set 30 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 19, 29] → [12, 7, 12, 17] → [_, _, 3, _, _]

Show answer

Answer: Row5[2]=4, Row2[1]=38, Row2[2]=48, Row3[1]=19, Row1[1]=86, Row5[4]=9, Row5[1]=8, Row5[5]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [86]
  • [38,48]
  • [19,19,29]
  • [12,7,12,17]
  • [8,4,3,9,8]
Base
  • 8
  • 4
  • 3
  • 9
  • 8
TopValue
86
HiddenCells
  • {"r":4,"c":1,"v":4}
  • {"r":1,"c":0,"v":38}
  • {"r":1,"c":1,"v":48}
  • {"r":2,"c":0,"v":19}
  • {"r":0,"c":0,"v":86}
  • {"r":4,"c":3,"v":9}
  • {"r":4,"c":0,"v":8}
  • {"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): [_] → [_, 39] → [18, _, _] → [_, _, 9, _] → [1, 6, 5, 4, _]

Show answer

Answer: Row2[1]=38, Row1[1]=77, Row5[5]=6, Row4[4]=10, Row3[2]=20, Row4[1]=7, Row4[2]=11, Row3[3]=19

SubType
number-pyramid
Difficulty
hard
Levels
  • [77]
  • [38,39]
  • [18,20,19]
  • [7,11,9,10]
  • [1,6,5,4,6]
Base
  • 1
  • 6
  • 5
  • 4
  • 6
TopValue
77
HiddenCells
  • {"r":1,"c":0,"v":38}
  • {"r":0,"c":0,"v":77}
  • {"r":4,"c":4,"v":6}
  • {"r":3,"c":3,"v":10}
  • {"r":2,"c":1,"v":20}
  • {"r":3,"c":0,"v":7}
  • {"r":3,"c":1,"v":11}
  • {"r":2,"c":2,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [91] → [_, _] → [18, _, _] → [_, 11, 12, _] → [3, _, _, 5, 10]

Show answer

Answer: Row5[3]=7, Row4[1]=7, Row2[1]=41, Row3[2]=23, Row2[2]=50, Row5[2]=4, Row3[3]=27, Row4[4]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [91]
  • [41,50]
  • [18,23,27]
  • [7,11,12,15]
  • [3,4,7,5,10]
Base
  • 3
  • 4
  • 7
  • 5
  • 10
TopValue
91
HiddenCells
  • {"r":4,"c":2,"v":7}
  • {"r":3,"c":0,"v":7}
  • {"r":1,"c":0,"v":41}
  • {"r":2,"c":1,"v":23}
  • {"r":1,"c":1,"v":50}
  • {"r":4,"c":1,"v":4}
  • {"r":2,"c":2,"v":27}
  • {"r":3,"c":3,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [56, _] → [30, 26, _] → [15, 15, _, _] → [_, 6, _, _, 6]

Show answer

Answer: Row4[4]=8, Row1[1]=101, Row5[4]=2, Row2[2]=45, Row3[3]=19, Row5[3]=9, Row4[3]=11, Row5[1]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [101]
  • [56,45]
  • [30,26,19]
  • [15,15,11,8]
  • [9,6,9,2,6]
Base
  • 9
  • 6
  • 9
  • 2
  • 6
TopValue
101
HiddenCells
  • {"r":3,"c":3,"v":8}
  • {"r":0,"c":0,"v":101}
  • {"r":4,"c":3,"v":2}
  • {"r":1,"c":1,"v":45}
  • {"r":2,"c":2,"v":19}
  • {"r":4,"c":2,"v":9}
  • {"r":3,"c":2,"v":11}
  • {"r":4,"c":0,"v":9}