starter Set 27 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [15] → [_, 10] → [_, 1, 9]

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Answer: Row2[1]=5, Row3[1]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [5,10]
  • [4,1,9]
Base
  • 4
  • 1
  • 9
TopValue
15
HiddenCells
  • {"r":1,"c":0,"v":5}
  • {"r":2,"c":0,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [_, 15] → [10, 6, _]

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Answer: Row2[1]=16, Row3[3]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [16,15]
  • [10,6,9]
Base
  • 10
  • 6
  • 9
TopValue
31
HiddenCells
  • {"r":1,"c":0,"v":16}
  • {"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): [31] → [_, 13] → [8, 10, _]

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Answer: Row2[1]=18, Row3[3]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [18,13]
  • [8,10,3]
Base
  • 8
  • 10
  • 3
TopValue
31
HiddenCells
  • {"r":1,"c":0,"v":18}
  • {"r":2,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [_, 14] → [1, _, 8]

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Answer: Row2[1]=7, Row3[2]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [7,14]
  • [1,6,8]
Base
  • 1
  • 6
  • 8
TopValue
21
HiddenCells
  • {"r":1,"c":0,"v":7}
  • {"r":2,"c":1,"v":6}