starter Set 54 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [9, _] → [7, _, 10]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [9,12]
  • [7,2,10]
Base
  • 7
  • 2
  • 10
TopValue
21
HiddenCells
  • {"r":1,"c":1,"v":12}
  • {"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): [_] → [6, _] → [4, 2, 7]

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Answer: Row2[2]=9, Row1[1]=15

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [6,9]
  • [4,2,7]
Base
  • 4
  • 2
  • 7
TopValue
15
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"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): [_] → [17, 11] → [_, 10, 1]

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Answer: Row1[1]=28, Row3[1]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [17,11]
  • [7,10,1]
Base
  • 7
  • 10
  • 1
TopValue
28
HiddenCells
  • {"r":0,"c":0,"v":28}
  • {"r":2,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [10, 10] → [1, 9, _]

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Answer: Row1[1]=20, Row3[3]=1

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [10,10]
  • [1,9,1]
Base
  • 1
  • 9
  • 1
TopValue
20
HiddenCells
  • {"r":0,"c":0,"v":20}
  • {"r":2,"c":2,"v":1}