starter Set 75 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [_, 9] → [4, 7, _]

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Answer: Row2[1]=11, Row3[3]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [11,9]
  • [4,7,2]
Base
  • 4
  • 7
  • 2
TopValue
20
HiddenCells
  • {"r":1,"c":0,"v":11}
  • {"r":2,"c":2,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, 9] → [_, 5, 4]

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Answer: Row1[1]=17, Row3[1]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [8,9]
  • [3,5,4]
Base
  • 3
  • 5
  • 4
TopValue
17
HiddenCells
  • {"r":0,"c":0,"v":17}
  • {"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): [_] → [_, 5] → [7, 3, 2]

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Answer: Row2[1]=10, Row1[1]=15

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [10,5]
  • [7,3,2]
Base
  • 7
  • 3
  • 2
TopValue
15
HiddenCells
  • {"r":1,"c":0,"v":10}
  • {"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): [_] → [20, 11] → [10, _, 1]

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Answer: Row3[2]=10, Row1[1]=31

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [20,11]
  • [10,10,1]
Base
  • 10
  • 10
  • 1
TopValue
31
HiddenCells
  • {"r":2,"c":1,"v":10}
  • {"r":0,"c":0,"v":31}