starter Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [7] → [2, 5] → [1, _, _]

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Answer: Row3[2]=1, Row3[3]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [7]
  • [2,5]
  • [1,1,4]
Base
  • 1
  • 1
  • 4
TopValue
7
HiddenCells
  • {"r":2,"c":1,"v":1}
  • {"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): [_] → [13, _] → [6, 7, 9]

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Answer: Row1[1]=29, Row2[2]=16

SubType
number-pyramid
Difficulty
starter
Levels
  • [29]
  • [13,16]
  • [6,7,9]
Base
  • 6
  • 7
  • 9
TopValue
29
HiddenCells
  • {"r":0,"c":0,"v":29}
  • {"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): [15] → [_, 9] → [_, 4, 5]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [6,9]
  • [2,4,5]
Base
  • 2
  • 4
  • 5
TopValue
15
HiddenCells
  • {"r":1,"c":0,"v":6}
  • {"r":2,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [36] → [19, 17] → [10, _, _]

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Answer: Row3[3]=8, Row3[2]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [36]
  • [19,17]
  • [10,9,8]
Base
  • 10
  • 9
  • 8
TopValue
36
HiddenCells
  • {"r":2,"c":2,"v":8}
  • {"r":2,"c":1,"v":9}