starter Set 19 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [12] → [3, 9] → [1, _, _]

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Answer: Row3[3]=7, Row3[2]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [12]
  • [3,9]
  • [1,2,7]
Base
  • 1
  • 2
  • 7
TopValue
12
HiddenCells
  • {"r":2,"c":2,"v":7}
  • {"r":2,"c":1,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [_, 11] → [_, 9, 2]

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Answer: Row2[1]=12, Row3[1]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [12,11]
  • [3,9,2]
Base
  • 3
  • 9
  • 2
TopValue
23
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"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): [_] → [_, 11] → [3, 1, 10]

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Answer: Row2[1]=4, Row1[1]=15

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [4,11]
  • [3,1,10]
Base
  • 3
  • 1
  • 10
TopValue
15
HiddenCells
  • {"r":1,"c":0,"v":4}
  • {"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): [25] → [8, 17] → [1, _, _]

Show answer

Answer: Row3[2]=7, Row3[3]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [8,17]
  • [1,7,10]
Base
  • 1
  • 7
  • 10
TopValue
25
HiddenCells
  • {"r":2,"c":1,"v":7}
  • {"r":2,"c":2,"v":10}