starter Set 30 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [7, _] → [2, 5, _]

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Answer: Row3[3]=9, Row2[2]=14

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [7,14]
  • [2,5,9]
Base
  • 2
  • 5
  • 9
TopValue
21
HiddenCells
  • {"r":2,"c":2,"v":9}
  • {"r":1,"c":1,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [16, 15] → [6, _, _]

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Answer: Row3[2]=10, Row3[3]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [16,15]
  • [6,10,5]
Base
  • 6
  • 10
  • 5
TopValue
31
HiddenCells
  • {"r":2,"c":1,"v":10}
  • {"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): [15] → [10, _] → [7, _, 2]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [10,5]
  • [7,3,2]
Base
  • 7
  • 3
  • 2
TopValue
15
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":1,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [22] → [10, _] → [6, _, 8]

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Answer: Row2[2]=12, Row3[2]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [22]
  • [10,12]
  • [6,4,8]
Base
  • 6
  • 4
  • 8
TopValue
22
HiddenCells
  • {"r":1,"c":1,"v":12}
  • {"r":2,"c":1,"v":4}