starter Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [_, _] → [10, 1, 9]

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Answer: Row2[1]=11, Row2[2]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [11,10]
  • [10,1,9]
Base
  • 10
  • 1
  • 9
TopValue
21
HiddenCells
  • {"r":1,"c":0,"v":11}
  • {"r":1,"c":1,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [_, 8] → [9, 4, _]

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Answer: Row2[1]=13, Row3[3]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [13,8]
  • [9,4,4]
Base
  • 9
  • 4
  • 4
TopValue
21
HiddenCells
  • {"r":1,"c":0,"v":13}
  • {"r":2,"c":2,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [7, _] → [4, 3, 7]

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Answer: Row2[2]=10, Row1[1]=17

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [7,10]
  • [4,3,7]
Base
  • 4
  • 3
  • 7
TopValue
17
HiddenCells
  • {"r":1,"c":1,"v":10}
  • {"r":0,"c":0,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 15] → [2, 9, 6]

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Answer: Row1[1]=26, Row2[1]=11

SubType
number-pyramid
Difficulty
starter
Levels
  • [26]
  • [11,15]
  • [2,9,6]
Base
  • 2
  • 9
  • 6
TopValue
26
HiddenCells
  • {"r":0,"c":0,"v":26}
  • {"r":1,"c":0,"v":11}