starter Set 89 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [11, _] → [3, _, 9]

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Answer: Row2[2]=17, Row3[2]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [11,17]
  • [3,8,9]
Base
  • 3
  • 8
  • 9
TopValue
28
HiddenCells
  • {"r":1,"c":1,"v":17}
  • {"r":2,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 11] → [10, _, 8]

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Answer: Row3[2]=3, Row1[1]=24

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [13,11]
  • [10,3,8]
Base
  • 10
  • 3
  • 8
TopValue
24
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":0,"c":0,"v":24}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 10] → [10, 3, 7]

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Answer: Row1[1]=23, Row2[1]=13

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [13,10]
  • [10,3,7]
Base
  • 10
  • 3
  • 7
TopValue
23
HiddenCells
  • {"r":0,"c":0,"v":23}
  • {"r":1,"c":0,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [_, 13] → [4, 8, _]

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Answer: Row3[3]=5, Row2[1]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [12,13]
  • [4,8,5]
Base
  • 4
  • 8
  • 5
TopValue
25
HiddenCells
  • {"r":2,"c":2,"v":5}
  • {"r":1,"c":0,"v":12}