hard Set 39 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [108] → [_, _] → [23, _, 31] → [_, _, 15, 16] → [_, 3, 9, _, _]

Show answer

Answer: Row4[1]=11, Row5[5]=10, Row4[2]=12, Row5[1]=8, Row3[2]=27, Row5[4]=6, Row2[2]=58, Row2[1]=50

SubType
number-pyramid
Difficulty
hard
Levels
  • [108]
  • [50,58]
  • [23,27,31]
  • [11,12,15,16]
  • [8,3,9,6,10]
Base
  • 8
  • 3
  • 9
  • 6
  • 10
TopValue
108
HiddenCells
  • {"r":3,"c":0,"v":11}
  • {"r":4,"c":4,"v":10}
  • {"r":3,"c":1,"v":12}
  • {"r":4,"c":0,"v":8}
  • {"r":2,"c":1,"v":27}
  • {"r":4,"c":3,"v":6}
  • {"r":1,"c":1,"v":58}
  • {"r":1,"c":0,"v":50}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [36, _, 26] → [_, 18, 13, 13] → [_, _, 10, 3, _]

Show answer

Answer: Row5[1]=10, Row5[2]=8, Row3[2]=31, Row2[2]=57, Row1[1]=124, Row4[1]=18, Row5[5]=10, Row2[1]=67

SubType
number-pyramid
Difficulty
hard
Levels
  • [124]
  • [67,57]
  • [36,31,26]
  • [18,18,13,13]
  • [10,8,10,3,10]
Base
  • 10
  • 8
  • 10
  • 3
  • 10
TopValue
124
HiddenCells
  • {"r":4,"c":0,"v":10}
  • {"r":4,"c":1,"v":8}
  • {"r":2,"c":1,"v":31}
  • {"r":1,"c":1,"v":57}
  • {"r":0,"c":0,"v":124}
  • {"r":3,"c":0,"v":18}
  • {"r":4,"c":4,"v":10}
  • {"r":1,"c":0,"v":67}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [54] → [_, _] → [23, _, 9] → [_, 8, 3, _] → [_, 6, _, 1, _]

Show answer

Answer: Row3[2]=11, Row4[4]=6, Row5[3]=2, Row5[5]=5, Row2[1]=34, Row2[2]=20, Row4[1]=15, Row5[1]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [54]
  • [34,20]
  • [23,11,9]
  • [15,8,3,6]
  • [9,6,2,1,5]
Base
  • 9
  • 6
  • 2
  • 1
  • 5
TopValue
54
HiddenCells
  • {"r":2,"c":1,"v":11}
  • {"r":3,"c":3,"v":6}
  • {"r":4,"c":2,"v":2}
  • {"r":4,"c":4,"v":5}
  • {"r":1,"c":0,"v":34}
  • {"r":1,"c":1,"v":20}
  • {"r":3,"c":0,"v":15}
  • {"r":4,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [71] → [34, 37] → [_, 18, _] → [_, _, _, _] → [4, 4, _, _, 3]

Show answer

Answer: Row5[3]=4, Row4[3]=10, Row4[2]=8, Row3[3]=19, Row4[4]=9, Row4[1]=8, Row3[1]=16, Row5[4]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [71]
  • [34,37]
  • [16,18,19]
  • [8,8,10,9]
  • [4,4,4,6,3]
Base
  • 4
  • 4
  • 4
  • 6
  • 3
TopValue
71
HiddenCells
  • {"r":4,"c":2,"v":4}
  • {"r":3,"c":2,"v":10}
  • {"r":3,"c":1,"v":8}
  • {"r":2,"c":2,"v":19}
  • {"r":3,"c":3,"v":9}
  • {"r":3,"c":0,"v":8}
  • {"r":2,"c":0,"v":16}
  • {"r":4,"c":3,"v":6}