starter Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [9, _] → [_, 6, 3]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [9,9]
  • [3,6,3]
Base
  • 3
  • 6
  • 3
TopValue
18
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"r":2,"c":0,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [33] → [16, _] → [_, 8, 9]

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Answer: Row2[2]=17, Row3[1]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [33]
  • [16,17]
  • [8,8,9]
Base
  • 8
  • 8
  • 9
TopValue
33
HiddenCells
  • {"r":1,"c":1,"v":17}
  • {"r":2,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [16] → [_, 7] → [7, 2, _]

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Answer: Row2[1]=9, Row3[3]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [9,7]
  • [7,2,5]
Base
  • 7
  • 2
  • 5
TopValue
16
HiddenCells
  • {"r":1,"c":0,"v":9}
  • {"r":2,"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): [31] → [_, 16] → [6, _, 7]

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Answer: Row3[2]=9, Row2[1]=15

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [15,16]
  • [6,9,7]
Base
  • 6
  • 9
  • 7
TopValue
31
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":1,"c":0,"v":15}