starter Set 20 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [10, _] → [3, 7, _]

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Answer: Row3[3]=4, Row2[2]=11

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, 19] → [1, 10, _]

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Answer: Row1[1]=30, Row3[3]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [30]
  • [11,19]
  • [1,10,9]
Base
  • 1
  • 10
  • 9
TopValue
30
HiddenCells
  • {"r":0,"c":0,"v":30}
  • {"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): [11] → [5, _] → [_, 4, 2]

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Answer: Row2[2]=6, Row3[1]=1

SubType
number-pyramid
Difficulty
starter
Levels
  • [11]
  • [5,6]
  • [1,4,2]
Base
  • 1
  • 4
  • 2
TopValue
11
HiddenCells
  • {"r":1,"c":1,"v":6}
  • {"r":2,"c":0,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [33] → [16, _] → [_, 8, 9]

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Answer: Row2[2]=17, Row3[1]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [33]
  • [16,17]
  • [8,8,9]
Base
  • 8
  • 8
  • 9
TopValue
33
HiddenCells
  • {"r":1,"c":1,"v":17}
  • {"r":2,"c":0,"v":8}