starter Set 30 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [15, 10] → [10, _, 5]

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Answer: Row3[2]=5, Row1[1]=25

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [15,10]
  • [10,5,5]
Base
  • 10
  • 5
  • 5
TopValue
25
HiddenCells
  • {"r":2,"c":1,"v":5}
  • {"r":0,"c":0,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [7, _] → [_, 5, 7]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [7,12]
  • [2,5,7]
Base
  • 2
  • 5
  • 7
TopValue
19
HiddenCells
  • {"r":1,"c":1,"v":12}
  • {"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): [19] → [10, 9] → [_, 2, _]

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Answer: Row3[1]=8, Row3[3]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [10,9]
  • [8,2,7]
Base
  • 8
  • 2
  • 7
TopValue
19
HiddenCells
  • {"r":2,"c":0,"v":8}
  • {"r":2,"c":2,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, _] → [9, 2, 9]

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Answer: Row2[2]=11, Row1[1]=22

SubType
number-pyramid
Difficulty
starter
Levels
  • [22]
  • [11,11]
  • [9,2,9]
Base
  • 9
  • 2
  • 9
TopValue
22
HiddenCells
  • {"r":1,"c":1,"v":11}
  • {"r":0,"c":0,"v":22}