starter Set 51 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [39] → [19, _] → [9, 10, _]

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Answer: Row2[2]=20, Row3[3]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [39]
  • [19,20]
  • [9,10,10]
Base
  • 9
  • 10
  • 10
TopValue
39
HiddenCells
  • {"r":1,"c":1,"v":20}
  • {"r":2,"c":2,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [24] → [_, _] → [9, 3, 9]

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Answer: Row2[1]=12, Row2[2]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [12,12]
  • [9,3,9]
Base
  • 9
  • 3
  • 9
TopValue
24
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"r":1,"c":1,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [10, _] → [6, 4, _]

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Answer: Row2[2]=13, Row3[3]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [10,13]
  • [6,4,9]
Base
  • 6
  • 4
  • 9
TopValue
23
HiddenCells
  • {"r":1,"c":1,"v":13}
  • {"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): [_] → [17, 17] → [8, 9, _]

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Answer: Row1[1]=34, Row3[3]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [34]
  • [17,17]
  • [8,9,8]
Base
  • 8
  • 9
  • 8
TopValue
34
HiddenCells
  • {"r":0,"c":0,"v":34}
  • {"r":2,"c":2,"v":8}