medium Set 89 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [_, 7] → [_, _, _] → [6, 3, 1, 2]

Show answer

Answer: Row3[2]=4, Row3[3]=3, Row2[1]=13, Row3[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [20]
  • [13,7]
  • [9,4,3]
  • [6,3,1,2]
Base
  • 6
  • 3
  • 1
  • 2
TopValue
20
HiddenCells
  • {"r":2,"c":1,"v":4}
  • {"r":2,"c":2,"v":3}
  • {"r":1,"c":0,"v":13}
  • {"r":2,"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): [43] → [_, 24] → [_, 13, _] → [1, _, 8, 3]

Show answer

Answer: Row3[1]=6, Row3[3]=11, Row2[1]=19, Row4[2]=5

SubType
number-pyramid
Difficulty
medium
Levels
  • [43]
  • [19,24]
  • [6,13,11]
  • [1,5,8,3]
Base
  • 1
  • 5
  • 8
  • 3
TopValue
43
HiddenCells
  • {"r":2,"c":0,"v":6}
  • {"r":2,"c":2,"v":11}
  • {"r":1,"c":0,"v":19}
  • {"r":3,"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): [_] → [24, 15] → [15, 9, _] → [7, 8, _, _]

Show answer

Answer: Row4[3]=1, Row4[4]=5, Row1[1]=39, Row3[3]=6

SubType
number-pyramid
Difficulty
medium
Levels
  • [39]
  • [24,15]
  • [15,9,6]
  • [7,8,1,5]
Base
  • 7
  • 8
  • 1
  • 5
TopValue
39
HiddenCells
  • {"r":3,"c":2,"v":1}
  • {"r":3,"c":3,"v":5}
  • {"r":0,"c":0,"v":39}
  • {"r":2,"c":2,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [16, 18] → [_, 8, _] → [_, 4, 4, 6]

Show answer

Answer: Row1[1]=34, Row3[1]=8, Row3[3]=10, Row4[1]=4

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