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): [_] → [_, 4] → [1, 2, 2]

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Answer: Row2[1]=3, Row1[1]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [7]
  • [3,4]
  • [1,2,2]
Base
  • 1
  • 2
  • 2
TopValue
7
HiddenCells
  • {"r":1,"c":0,"v":3}
  • {"r":0,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [_, 7] → [7, _, 2]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [12,7]
  • [7,5,2]
Base
  • 7
  • 5
  • 2
TopValue
19
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"r":2,"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): [31] → [11, 20] → [1, _, _]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [11,20]
  • [1,10,10]
Base
  • 1
  • 10
  • 10
TopValue
31
HiddenCells
  • {"r":2,"c":1,"v":10}
  • {"r":2,"c":2,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [26] → [16, 10] → [7, _, _]

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Answer: Row3[3]=1, Row3[2]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [26]
  • [16,10]
  • [7,9,1]
Base
  • 7
  • 9
  • 1
TopValue
26
HiddenCells
  • {"r":2,"c":2,"v":1}
  • {"r":2,"c":1,"v":9}