hard Set 50 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [86] → [38, 48] → [18, _, 28] → [_, _, _, _] → [_, 5, _, _, 10]

Show answer

Answer: Row5[3]=4, Row5[1]=4, Row4[4]=17, Row4[1]=9, Row4[3]=11, Row3[2]=20, Row5[4]=7, Row4[2]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [86]
  • [38,48]
  • [18,20,28]
  • [9,9,11,17]
  • [4,5,4,7,10]
Base
  • 4
  • 5
  • 4
  • 7
  • 10
TopValue
86
HiddenCells
  • {"r":4,"c":2,"v":4}
  • {"r":4,"c":0,"v":4}
  • {"r":3,"c":3,"v":17}
  • {"r":3,"c":0,"v":9}
  • {"r":3,"c":2,"v":11}
  • {"r":2,"c":1,"v":20}
  • {"r":4,"c":3,"v":7}
  • {"r":3,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [92] → [_, 52] → [_, 25, _] → [5, _, _, _] → [3, _, 8, 7, _]

Show answer

Answer: Row2[1]=40, Row4[2]=10, Row4[3]=15, Row5[5]=5, Row3[1]=15, Row5[2]=2, Row4[4]=12, Row3[3]=27

SubType
number-pyramid
Difficulty
hard
Levels
  • [92]
  • [40,52]
  • [15,25,27]
  • [5,10,15,12]
  • [3,2,8,7,5]
Base
  • 3
  • 2
  • 8
  • 7
  • 5
TopValue
92
HiddenCells
  • {"r":1,"c":0,"v":40}
  • {"r":3,"c":1,"v":10}
  • {"r":3,"c":2,"v":15}
  • {"r":4,"c":4,"v":5}
  • {"r":2,"c":0,"v":15}
  • {"r":4,"c":1,"v":2}
  • {"r":3,"c":3,"v":12}
  • {"r":2,"c":2,"v":27}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 31] → [_, _, 13] → [_, 10, _, 5] → [_, 5, _, 3, 2]

Show answer

Answer: Row1[1]=69, Row4[1]=10, Row3[2]=18, Row4[3]=8, Row3[1]=20, Row2[1]=38, Row5[1]=5, Row5[3]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [69]
  • [38,31]
  • [20,18,13]
  • [10,10,8,5]
  • [5,5,5,3,2]
Base
  • 5
  • 5
  • 5
  • 3
  • 2
TopValue
69
HiddenCells
  • {"r":0,"c":0,"v":69}
  • {"r":3,"c":0,"v":10}
  • {"r":2,"c":1,"v":18}
  • {"r":3,"c":2,"v":8}
  • {"r":2,"c":0,"v":20}
  • {"r":1,"c":0,"v":38}
  • {"r":4,"c":0,"v":5}
  • {"r":4,"c":2,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [132] → [64, _] → [_, _, 34] → [_, 15, 19, 15] → [_, _, _, _, 6]

Show answer

Answer: Row5[4]=9, Row2[2]=68, Row5[3]=10, Row5[2]=5, Row5[1]=10, Row3[1]=30, Row3[2]=34, Row4[1]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [132]
  • [64,68]
  • [30,34,34]
  • [15,15,19,15]
  • [10,5,10,9,6]
Base
  • 10
  • 5
  • 10
  • 9
  • 6
TopValue
132
HiddenCells
  • {"r":4,"c":3,"v":9}
  • {"r":1,"c":1,"v":68}
  • {"r":4,"c":2,"v":10}
  • {"r":4,"c":1,"v":5}
  • {"r":4,"c":0,"v":10}
  • {"r":2,"c":0,"v":30}
  • {"r":2,"c":1,"v":34}
  • {"r":3,"c":0,"v":15}