starter Set 12 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [15, _] → [9, 6, _]

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Answer: Row2[2]=10, Row3[3]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [15,10]
  • [9,6,4]
Base
  • 9
  • 6
  • 4
TopValue
25
HiddenCells
  • {"r":1,"c":1,"v":10}
  • {"r":2,"c":2,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [13, _] → [_, 8, 4]

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Answer: Row3[1]=5, Row2[2]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [13,12]
  • [5,8,4]
Base
  • 5
  • 8
  • 4
TopValue
25
HiddenCells
  • {"r":2,"c":0,"v":5}
  • {"r":1,"c":1,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, _] → [5, 3, 4]

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Answer: Row2[2]=7, Row1[1]=15

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [8,7]
  • [5,3,4]
Base
  • 5
  • 3
  • 4
TopValue
15
HiddenCells
  • {"r":1,"c":1,"v":7}
  • {"r":0,"c":0,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [6] → [3, 3] → [_, _, 1]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [6]
  • [3,3]
  • [1,2,1]
Base
  • 1
  • 2
  • 1
TopValue
6
HiddenCells
  • {"r":2,"c":1,"v":2}
  • {"r":2,"c":0,"v":1}