starter Set 78 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, _] → [8, 5, 2]

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Answer: Row2[2]=7, Row1[1]=20

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [13,7]
  • [8,5,2]
Base
  • 8
  • 5
  • 2
TopValue
20
HiddenCells
  • {"r":1,"c":1,"v":7}
  • {"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): [18] → [_, 10] → [7, _, 9]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [8,10]
  • [7,1,9]
Base
  • 7
  • 1
  • 9
TopValue
18
HiddenCells
  • {"r":2,"c":1,"v":1}
  • {"r":1,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [30] → [12, _] → [3, _, 9]

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Answer: Row3[2]=9, Row2[2]=18

SubType
number-pyramid
Difficulty
starter
Levels
  • [30]
  • [12,18]
  • [3,9,9]
Base
  • 3
  • 9
  • 9
TopValue
30
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":1,"c":1,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [30] → [12, 18] → [_, _, 9]

Show answer

Answer: Row3[1]=3, Row3[2]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [30]
  • [12,18]
  • [3,9,9]
Base
  • 3
  • 9
  • 9
TopValue
30
HiddenCells
  • {"r":2,"c":0,"v":3}
  • {"r":2,"c":1,"v":9}