starter Set 61 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 15] → [9, 6, 9]

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Answer: Row2[1]=15, Row1[1]=30

SubType
number-pyramid
Difficulty
starter
Levels
  • [30]
  • [15,15]
  • [9,6,9]
Base
  • 9
  • 6
  • 9
TopValue
30
HiddenCells
  • {"r":1,"c":0,"v":15}
  • {"r":0,"c":0,"v":30}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 18] → [5, 8, _]

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Answer: Row3[3]=10, Row1[1]=31

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [13,18]
  • [5,8,10]
Base
  • 5
  • 8
  • 10
TopValue
31
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"r":0,"c":0,"v":31}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 6] → [2, 2, 4]

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Answer: Row2[1]=4, Row1[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [10]
  • [4,6]
  • [2,2,4]
Base
  • 2
  • 2
  • 4
TopValue
10
HiddenCells
  • {"r":1,"c":0,"v":4}
  • {"r":0,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [8, _] → [_, 7, 5]

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Answer: Row2[2]=12, Row3[1]=1

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [8,12]
  • [1,7,5]
Base
  • 1
  • 7
  • 5
TopValue
20
HiddenCells
  • {"r":1,"c":1,"v":12}
  • {"r":2,"c":0,"v":1}