starter Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [_, _] → [9, 3, 3]

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Answer: Row2[1]=12, Row2[2]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [12,6]
  • [9,3,3]
Base
  • 9
  • 3
  • 3
TopValue
18
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"r":1,"c":1,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [12, _] → [_, 3, 10]

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Answer: Row2[2]=13, Row3[1]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [12,13]
  • [9,3,10]
Base
  • 9
  • 3
  • 10
TopValue
25
HiddenCells
  • {"r":1,"c":1,"v":13}
  • {"r":2,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [14, 6] → [_, 5, 1]

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Answer: Row3[1]=9, Row1[1]=20

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [14,6]
  • [9,5,1]
Base
  • 9
  • 5
  • 1
TopValue
20
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":0,"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): [20] → [_, 11] → [8, 1, _]

Show answer

Answer: Row3[3]=10, Row2[1]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [9,11]
  • [8,1,10]
Base
  • 8
  • 1
  • 10
TopValue
20
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"r":1,"c":0,"v":9}