starter Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [_, 10] → [4, 9, _]

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Answer: Row2[1]=13, Row3[3]=1

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [13,10]
  • [4,9,1]
Base
  • 4
  • 9
  • 1
TopValue
23
HiddenCells
  • {"r":1,"c":0,"v":13}
  • {"r":2,"c":2,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [14, _] → [6, 8, 8]

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Answer: Row2[2]=16, Row1[1]=30

SubType
number-pyramid
Difficulty
starter
Levels
  • [30]
  • [14,16]
  • [6,8,8]
Base
  • 6
  • 8
  • 8
TopValue
30
HiddenCells
  • {"r":1,"c":1,"v":16}
  • {"r":0,"c":0,"v":30}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [9] → [5, 4] → [_, 1, _]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [9]
  • [5,4]
  • [4,1,3]
Base
  • 4
  • 1
  • 3
TopValue
9
HiddenCells
  • {"r":2,"c":0,"v":4}
  • {"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, 13] → [_, 5, 8]

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Answer: Row3[1]=7, Row1[1]=25

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [12,13]
  • [7,5,8]
Base
  • 7
  • 5
  • 8
TopValue
25
HiddenCells
  • {"r":2,"c":0,"v":7}
  • {"r":0,"c":0,"v":25}