starter Set 75 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [12] → [9, _] → [_, 2, 1]

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Answer: Row2[2]=3, Row3[1]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [12]
  • [9,3]
  • [7,2,1]
Base
  • 7
  • 2
  • 1
TopValue
12
HiddenCells
  • {"r":1,"c":1,"v":3}
  • {"r":2,"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): [14] → [5, _] → [4, 1, _]

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Answer: Row2[2]=9, Row3[3]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [14]
  • [5,9]
  • [4,1,8]
Base
  • 4
  • 1
  • 8
TopValue
14
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"r":2,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [24] → [_, 16] → [1, _, 9]

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Answer: Row3[2]=7, Row2[1]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [8,16]
  • [1,7,9]
Base
  • 1
  • 7
  • 9
TopValue
24
HiddenCells
  • {"r":2,"c":1,"v":7}
  • {"r":1,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 18] → [2, 9, 9]

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Answer: Row1[1]=29, Row2[1]=11

SubType
number-pyramid
Difficulty
starter
Levels
  • [29]
  • [11,18]
  • [2,9,9]
Base
  • 2
  • 9
  • 9
TopValue
29
HiddenCells
  • {"r":0,"c":0,"v":29}
  • {"r":1,"c":0,"v":11}