hard Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [61] → [_, _] → [_, 17, 17] → [_, _, 9, 8] → [1, _, 7, _, _]

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Answer: Row4[1]=2, Row2[1]=27, Row3[1]=10, Row5[2]=1, Row5[5]=6, Row4[2]=8, Row5[4]=2, Row2[2]=34

SubType
number-pyramid
Difficulty
hard
Levels
  • [61]
  • [27,34]
  • [10,17,17]
  • [2,8,9,8]
  • [1,1,7,2,6]
Base
  • 1
  • 1
  • 7
  • 2
  • 6
TopValue
61
HiddenCells
  • {"r":3,"c":0,"v":2}
  • {"r":1,"c":0,"v":27}
  • {"r":2,"c":0,"v":10}
  • {"r":4,"c":1,"v":1}
  • {"r":4,"c":4,"v":6}
  • {"r":3,"c":1,"v":8}
  • {"r":4,"c":3,"v":2}
  • {"r":1,"c":1,"v":34}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [68] → [_, _] → [_, 15, 9] → [18, _, _, 5] → [9, _, 2, _, _]

Show answer

Answer: Row5[2]=9, Row4[3]=4, Row3[1]=29, Row5[5]=3, Row2[1]=44, Row4[2]=11, Row5[4]=2, Row2[2]=24

SubType
number-pyramid
Difficulty
hard
Levels
  • [68]
  • [44,24]
  • [29,15,9]
  • [18,11,4,5]
  • [9,9,2,2,3]
Base
  • 9
  • 9
  • 2
  • 2
  • 3
TopValue
68
HiddenCells
  • {"r":4,"c":1,"v":9}
  • {"r":3,"c":2,"v":4}
  • {"r":2,"c":0,"v":29}
  • {"r":4,"c":4,"v":3}
  • {"r":1,"c":0,"v":44}
  • {"r":3,"c":1,"v":11}
  • {"r":4,"c":3,"v":2}
  • {"r":1,"c":1,"v":24}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 28] → [_, _, 11] → [_, _, 5, _] → [2, 9, 3, _, 4]

Show answer

Answer: Row2[1]=40, Row4[2]=12, Row5[4]=2, Row3[2]=17, Row4[4]=6, Row3[1]=23, Row1[1]=68, Row4[1]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [68]
  • [40,28]
  • [23,17,11]
  • [11,12,5,6]
  • [2,9,3,2,4]
Base
  • 2
  • 9
  • 3
  • 2
  • 4
TopValue
68
HiddenCells
  • {"r":1,"c":0,"v":40}
  • {"r":3,"c":1,"v":12}
  • {"r":4,"c":3,"v":2}
  • {"r":2,"c":1,"v":17}
  • {"r":3,"c":3,"v":6}
  • {"r":2,"c":0,"v":23}
  • {"r":0,"c":0,"v":68}
  • {"r":3,"c":0,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [126] → [_, _] → [_, 34, _] → [13, _, 18, 11] → [7, 6, _, _, _]

Show answer

Answer: Row4[2]=16, Row5[5]=3, Row5[4]=8, Row3[1]=29, Row3[3]=29, Row2[2]=63, Row5[3]=10, Row2[1]=63

SubType
number-pyramid
Difficulty
hard
Levels
  • [126]
  • [63,63]
  • [29,34,29]
  • [13,16,18,11]
  • [7,6,10,8,3]
Base
  • 7
  • 6
  • 10
  • 8
  • 3
TopValue
126
HiddenCells
  • {"r":3,"c":1,"v":16}
  • {"r":4,"c":4,"v":3}
  • {"r":4,"c":3,"v":8}
  • {"r":2,"c":0,"v":29}
  • {"r":2,"c":2,"v":29}
  • {"r":1,"c":1,"v":63}
  • {"r":4,"c":2,"v":10}
  • {"r":1,"c":0,"v":63}