hard Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 42] → [17, _, 22] → [7, _, _, 12] → [1, 6, _, _, _]

Show answer

Answer: Row4[2]=10, Row5[5]=6, Row3[2]=20, Row5[4]=6, Row5[3]=4, Row2[1]=37, Row4[3]=10, Row1[1]=79

SubType
number-pyramid
Difficulty
hard
Levels
  • [79]
  • [37,42]
  • [17,20,22]
  • [7,10,10,12]
  • [1,6,4,6,6]
Base
  • 1
  • 6
  • 4
  • 6
  • 6
TopValue
79
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":4,"c":4,"v":6}
  • {"r":2,"c":1,"v":20}
  • {"r":4,"c":3,"v":6}
  • {"r":4,"c":2,"v":4}
  • {"r":1,"c":0,"v":37}
  • {"r":3,"c":2,"v":10}
  • {"r":0,"c":0,"v":79}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [48] → [_, _] → [_, 11, 10] → [_, _, _, 5] → [_, 3, 3, 2, _]

Show answer

Answer: Row2[2]=21, Row5[5]=3, Row4[2]=6, Row4[3]=5, Row2[1]=27, Row5[1]=7, Row3[1]=16, Row4[1]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [48]
  • [27,21]
  • [16,11,10]
  • [10,6,5,5]
  • [7,3,3,2,3]
Base
  • 7
  • 3
  • 3
  • 2
  • 3
TopValue
48
HiddenCells
  • {"r":1,"c":1,"v":21}
  • {"r":4,"c":4,"v":3}
  • {"r":3,"c":1,"v":6}
  • {"r":3,"c":2,"v":5}
  • {"r":1,"c":0,"v":27}
  • {"r":4,"c":0,"v":7}
  • {"r":2,"c":0,"v":16}
  • {"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): [_] → [30, _] → [18, _, _] → [12, _, 6, _] → [9, _, 3, _, 8]

Show answer

Answer: Row5[2]=3, Row3[3]=17, Row1[1]=59, Row2[2]=29, Row3[2]=12, Row5[4]=3, Row4[2]=6, Row4[4]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [59]
  • [30,29]
  • [18,12,17]
  • [12,6,6,11]
  • [9,3,3,3,8]
Base
  • 9
  • 3
  • 3
  • 3
  • 8
TopValue
59
HiddenCells
  • {"r":4,"c":1,"v":3}
  • {"r":2,"c":2,"v":17}
  • {"r":0,"c":0,"v":59}
  • {"r":1,"c":1,"v":29}
  • {"r":2,"c":1,"v":12}
  • {"r":4,"c":3,"v":3}
  • {"r":3,"c":1,"v":6}
  • {"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): [53] → [24, _] → [14, 10, 19] → [11, _, 7, _] → [_, _, _, _, _]

Show answer

Answer: Row5[5]=7, Row5[3]=2, Row4[2]=3, Row5[2]=1, Row5[1]=10, Row2[2]=29, Row4[4]=12, Row5[4]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [53]
  • [24,29]
  • [14,10,19]
  • [11,3,7,12]
  • [10,1,2,5,7]
Base
  • 10
  • 1
  • 2
  • 5
  • 7
TopValue
53
HiddenCells
  • {"r":4,"c":4,"v":7}
  • {"r":4,"c":2,"v":2}
  • {"r":3,"c":1,"v":3}
  • {"r":4,"c":1,"v":1}
  • {"r":4,"c":0,"v":10}
  • {"r":1,"c":1,"v":29}
  • {"r":3,"c":3,"v":12}
  • {"r":4,"c":3,"v":5}