starter Set 64 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, _] → [5, 4, _]

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Answer: Row2[2]=9, Row3[3]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [9,9]
  • [5,4,5]
Base
  • 5
  • 4
  • 5
TopValue
18
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"r":2,"c":2,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [8, 13] → [_, 6, _]

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Answer: Row3[1]=2, Row3[3]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [8,13]
  • [2,6,7]
Base
  • 2
  • 6
  • 7
TopValue
21
HiddenCells
  • {"r":2,"c":0,"v":2}
  • {"r":2,"c":2,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [15] → [7, 8] → [4, _, _]

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Answer: Row3[2]=3, Row3[3]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [7,8]
  • [4,3,5]
Base
  • 4
  • 3
  • 5
TopValue
15
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":2,"c":2,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [14] → [4, 10] → [_, _, 8]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [14]
  • [4,10]
  • [2,2,8]
Base
  • 2
  • 2
  • 8
TopValue
14
HiddenCells
  • {"r":2,"c":1,"v":2}
  • {"r":2,"c":0,"v":2}