hard Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [77] → [_, _] → [_, 16, 18] → [_, _, _, 12] → [_, 7, 3, _, 9]

Show answer

Answer: Row4[2]=10, Row3[1]=27, Row5[1]=10, Row4[1]=17, Row2[1]=43, Row4[3]=6, Row2[2]=34, Row5[4]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [77]
  • [43,34]
  • [27,16,18]
  • [17,10,6,12]
  • [10,7,3,3,9]
Base
  • 10
  • 7
  • 3
  • 3
  • 9
TopValue
77
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":2,"c":0,"v":27}
  • {"r":4,"c":0,"v":10}
  • {"r":3,"c":0,"v":17}
  • {"r":1,"c":0,"v":43}
  • {"r":3,"c":2,"v":6}
  • {"r":1,"c":1,"v":34}
  • {"r":4,"c":3,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, _] → [10, _, 8, 11] → [2, 8, 1, 7, _]

Show answer

Answer: Row3[1]=19, Row2[2]=36, Row1[1]=72, Row3[3]=19, Row4[2]=9, Row5[5]=4, Row2[1]=36, Row3[2]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [72]
  • [36,36]
  • [19,17,19]
  • [10,9,8,11]
  • [2,8,1,7,4]
Base
  • 2
  • 8
  • 1
  • 7
  • 4
TopValue
72
HiddenCells
  • {"r":2,"c":0,"v":19}
  • {"r":1,"c":1,"v":36}
  • {"r":0,"c":0,"v":72}
  • {"r":2,"c":2,"v":19}
  • {"r":3,"c":1,"v":9}
  • {"r":4,"c":4,"v":4}
  • {"r":1,"c":0,"v":36}
  • {"r":2,"c":1,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [24, 21] → [_, _, _] → [7, 7, 3, _] → [2, _, 2, _, _]

Show answer

Answer: Row3[2]=10, Row3[1]=14, Row4[4]=8, Row3[3]=11, Row1[1]=45, Row5[5]=7, Row5[4]=1, Row5[2]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [45]
  • [24,21]
  • [14,10,11]
  • [7,7,3,8]
  • [2,5,2,1,7]
Base
  • 2
  • 5
  • 2
  • 1
  • 7
TopValue
45
HiddenCells
  • {"r":2,"c":1,"v":10}
  • {"r":2,"c":0,"v":14}
  • {"r":3,"c":3,"v":8}
  • {"r":2,"c":2,"v":11}
  • {"r":0,"c":0,"v":45}
  • {"r":4,"c":4,"v":7}
  • {"r":4,"c":3,"v":1}
  • {"r":4,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [46] → [_, 29] → [_, _, _] → [3, 4, _, 13] → [2, _, 3, _, _]

Show answer

Answer: Row3[2]=10, Row5[2]=1, Row3[3]=19, Row5[4]=3, Row3[1]=7, Row4[3]=6, Row5[5]=10, Row2[1]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [46]
  • [17,29]
  • [7,10,19]
  • [3,4,6,13]
  • [2,1,3,3,10]
Base
  • 2
  • 1
  • 3
  • 3
  • 10
TopValue
46
HiddenCells
  • {"r":2,"c":1,"v":10}
  • {"r":4,"c":1,"v":1}
  • {"r":2,"c":2,"v":19}
  • {"r":4,"c":3,"v":3}
  • {"r":2,"c":0,"v":7}
  • {"r":3,"c":2,"v":6}
  • {"r":4,"c":4,"v":10}
  • {"r":1,"c":0,"v":17}