starter Set 13 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [12, _] → [9, _, 6]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [12,9]
  • [9,3,6]
Base
  • 9
  • 3
  • 6
TopValue
21
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":1,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [24] → [8, _] → [1, _, 9]

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Answer: Row3[2]=7, Row2[2]=16

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [8,16]
  • [1,7,9]
Base
  • 1
  • 7
  • 9
TopValue
24
HiddenCells
  • {"r":2,"c":1,"v":7}
  • {"r":1,"c":1,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [14, _] → [5, _, 8]

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Answer: Row3[2]=9, Row2[2]=17

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [14,17]
  • [5,9,8]
Base
  • 5
  • 9
  • 8
TopValue
31
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":1,"c":1,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [26] → [_, 16] → [2, 8, _]

Show answer

Answer: Row3[3]=8, Row2[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [26]
  • [10,16]
  • [2,8,8]
Base
  • 2
  • 8
  • 8
TopValue
26
HiddenCells
  • {"r":2,"c":2,"v":8}
  • {"r":1,"c":0,"v":10}