starter Set 99 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [_, 6] → [_, 2, 4]

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Answer: Row2[1]=11, Row3[1]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [11,6]
  • [9,2,4]
Base
  • 9
  • 2
  • 4
TopValue
17
HiddenCells
  • {"r":1,"c":0,"v":11}
  • {"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): [_] → [_, 7] → [4, 4, 3]

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Answer: Row2[1]=8, Row1[1]=15

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [8,7]
  • [4,4,3]
Base
  • 4
  • 4
  • 3
TopValue
15
HiddenCells
  • {"r":1,"c":0,"v":8}
  • {"r":0,"c":0,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 10] → [7, 6, 4]

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Answer: Row1[1]=23, Row2[1]=13

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [13,10]
  • [7,6,4]
Base
  • 7
  • 6
  • 4
TopValue
23
HiddenCells
  • {"r":0,"c":0,"v":23}
  • {"r":1,"c":0,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [_, 12] → [9, _, 2]

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Answer: Row2[1]=19, Row3[2]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [19,12]
  • [9,10,2]
Base
  • 9
  • 10
  • 2
TopValue
31
HiddenCells
  • {"r":1,"c":0,"v":19}
  • {"r":2,"c":1,"v":10}