starter Set 13 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [33] → [_, 13] → [_, 10, 3]

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Answer: Row3[1]=10, Row2[1]=20

SubType
number-pyramid
Difficulty
starter
Levels
  • [33]
  • [20,13]
  • [10,10,3]
Base
  • 10
  • 10
  • 3
TopValue
33
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":1,"c":0,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [35] → [18, _] → [9, 9, _]

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Answer: Row2[2]=17, Row3[3]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [35]
  • [18,17]
  • [9,9,8]
Base
  • 9
  • 9
  • 8
TopValue
35
HiddenCells
  • {"r":1,"c":1,"v":17}
  • {"r":2,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [12] → [_, _] → [2, 3, 4]

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Answer: Row2[1]=5, Row2[2]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [12]
  • [5,7]
  • [2,3,4]
Base
  • 2
  • 3
  • 4
TopValue
12
HiddenCells
  • {"r":1,"c":0,"v":5}
  • {"r":1,"c":1,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [24] → [12, _] → [2, 10, _]

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Answer: Row3[3]=2, Row2[2]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [12,12]
  • [2,10,2]
Base
  • 2
  • 10
  • 2
TopValue
24
HiddenCells
  • {"r":2,"c":2,"v":2}
  • {"r":1,"c":1,"v":12}