starter Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [_, 15] → [2, _, 9]

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Answer: Row3[2]=6, Row2[1]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [8,15]
  • [2,6,9]
Base
  • 2
  • 6
  • 9
TopValue
23
HiddenCells
  • {"r":2,"c":1,"v":6}
  • {"r":1,"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): [21] → [15, 6] → [_, 5, _]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [15,6]
  • [10,5,1]
Base
  • 10
  • 5
  • 1
TopValue
21
HiddenCells
  • {"r":2,"c":2,"v":1}
  • {"r":2,"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): [32] → [_, _] → [4, 9, 10]

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Answer: Row2[1]=13, Row2[2]=19

SubType
number-pyramid
Difficulty
starter
Levels
  • [32]
  • [13,19]
  • [4,9,10]
Base
  • 4
  • 9
  • 10
TopValue
32
HiddenCells
  • {"r":1,"c":0,"v":13}
  • {"r":1,"c":1,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [15, _] → [7, 8, _]

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Answer: Row3[3]=4, Row2[2]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [27]
  • [15,12]
  • [7,8,4]
Base
  • 7
  • 8
  • 4
TopValue
27
HiddenCells
  • {"r":2,"c":2,"v":4}
  • {"r":1,"c":1,"v":12}