medium Set 40 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [13, _] → [_, 4, _] → [8, _, 3, 3]

Show answer

Answer: Row3[1]=9, Row2[2]=10, Row3[3]=6, Row4[2]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [23]
  • [13,10]
  • [9,4,6]
  • [8,1,3,3]
Base
  • 8
  • 1
  • 3
  • 3
TopValue
23
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":1,"c":1,"v":10}
  • {"r":2,"c":2,"v":6}
  • {"r":3,"c":1,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, 15] → [_, 6, _] → [1, 4, _, 7]

Show answer

Answer: Row3[1]=5, Row4[3]=2, Row1[1]=26, Row3[3]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [26]
  • [11,15]
  • [5,6,9]
  • [1,4,2,7]
Base
  • 1
  • 4
  • 2
  • 7
TopValue
26
HiddenCells
  • {"r":2,"c":0,"v":5}
  • {"r":3,"c":2,"v":2}
  • {"r":0,"c":0,"v":26}
  • {"r":2,"c":2,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 15] → [5, 8, 7] → [_, _, _, 2]

Show answer

Answer: Row4[1]=2, Row4[2]=3, Row4[3]=5, Row1[1]=28

SubType
number-pyramid
Difficulty
medium
Levels
  • [28]
  • [13,15]
  • [5,8,7]
  • [2,3,5,2]
Base
  • 2
  • 3
  • 5
  • 2
TopValue
28
HiddenCells
  • {"r":3,"c":0,"v":2}
  • {"r":3,"c":1,"v":3}
  • {"r":3,"c":2,"v":5}
  • {"r":0,"c":0,"v":28}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 28] → [18, _, 13] → [_, 9, 6, 7]

Show answer

Answer: Row3[2]=15, Row1[1]=61, Row4[1]=9, Row2[1]=33

SubType
number-pyramid
Difficulty
medium
Levels
  • [61]
  • [33,28]
  • [18,15,13]
  • [9,9,6,7]
Base
  • 9
  • 9
  • 6
  • 7
TopValue
61
HiddenCells
  • {"r":2,"c":1,"v":15}
  • {"r":0,"c":0,"v":61}
  • {"r":3,"c":0,"v":9}
  • {"r":1,"c":0,"v":33}