starter Set 99 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [7, 13] → [_, 5, 8]

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Answer: Row3[1]=2, Row1[1]=20

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [7,13]
  • [2,5,8]
Base
  • 2
  • 5
  • 8
TopValue
20
HiddenCells
  • {"r":2,"c":0,"v":2}
  • {"r":0,"c":0,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [18, 11] → [10, 8, _]

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Answer: Row1[1]=29, Row3[3]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [29]
  • [18,11]
  • [10,8,3]
Base
  • 10
  • 8
  • 3
TopValue
29
HiddenCells
  • {"r":0,"c":0,"v":29}
  • {"r":2,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 12] → [9, 8, 4]

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Answer: Row2[1]=17, Row1[1]=29

SubType
number-pyramid
Difficulty
starter
Levels
  • [29]
  • [17,12]
  • [9,8,4]
Base
  • 9
  • 8
  • 4
TopValue
29
HiddenCells
  • {"r":1,"c":0,"v":17}
  • {"r":0,"c":0,"v":29}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [15] → [6, _] → [1, 5, _]

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Answer: Row3[3]=4, Row2[2]=9

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