starter Set 29 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [39] → [_, 19] → [10, 10, _]

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Answer: Row2[1]=20, Row3[3]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [39]
  • [20,19]
  • [10,10,9]
Base
  • 10
  • 10
  • 9
TopValue
39
HiddenCells
  • {"r":1,"c":0,"v":20}
  • {"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): [21] → [_, 11] → [3, _, 4]

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Answer: Row3[2]=7, Row2[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [10,11]
  • [3,7,4]
Base
  • 3
  • 7
  • 4
TopValue
21
HiddenCells
  • {"r":2,"c":1,"v":7}
  • {"r":1,"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): [_] → [7, 9] → [4, _, 6]

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Answer: Row3[2]=3, Row1[1]=16

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [7,9]
  • [4,3,6]
Base
  • 4
  • 3
  • 6
TopValue
16
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":0,"c":0,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [_, 15] → [4, 6, _]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [10,15]
  • [4,6,9]
Base
  • 4
  • 6
  • 9
TopValue
25
HiddenCells
  • {"r":2,"c":2,"v":9}
  • {"r":1,"c":0,"v":10}