starter Set 21 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [12, 13] → [_, 3, _]

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Answer: Row3[3]=10, Row3[1]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [12,13]
  • [9,3,10]
Base
  • 9
  • 3
  • 10
TopValue
25
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"r":2,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [10, _] → [_, 8, 9]

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Answer: Row2[2]=17, Row3[1]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [27]
  • [10,17]
  • [2,8,9]
Base
  • 2
  • 8
  • 9
TopValue
27
HiddenCells
  • {"r":1,"c":1,"v":17}
  • {"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): [_] → [7, _] → [6, 1, 4]

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Answer: Row1[1]=12, Row2[2]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [12]
  • [7,5]
  • [6,1,4]
Base
  • 6
  • 1
  • 4
TopValue
12
HiddenCells
  • {"r":0,"c":0,"v":12}
  • {"r":1,"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): [14] → [8, 6] → [_, _, 5]

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Answer: Row3[2]=1, Row3[1]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [14]
  • [8,6]
  • [7,1,5]
Base
  • 7
  • 1
  • 5
TopValue
14
HiddenCells
  • {"r":2,"c":1,"v":1}
  • {"r":2,"c":0,"v":7}