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): [_] → [16, 15] → [_, 8, 7]

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Answer: Row3[1]=8, Row1[1]=31

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [16,15]
  • [8,8,7]
Base
  • 8
  • 8
  • 7
TopValue
31
HiddenCells
  • {"r":2,"c":0,"v":8}
  • {"r":0,"c":0,"v":31}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [_, _] → [9, 9, 1]

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Answer: Row2[2]=10, Row2[1]=18

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [18,10]
  • [9,9,1]
Base
  • 9
  • 9
  • 1
TopValue
28
HiddenCells
  • {"r":1,"c":1,"v":10}
  • {"r":1,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [13] → [_, 7] → [4, _, 5]

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Answer: Row3[2]=2, Row2[1]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [13]
  • [6,7]
  • [4,2,5]
Base
  • 4
  • 2
  • 5
TopValue
13
HiddenCells
  • {"r":2,"c":1,"v":2}
  • {"r":1,"c":0,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [30] → [12, 18] → [_, _, 9]

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Answer: Row3[2]=9, Row3[1]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [30]
  • [12,18]
  • [3,9,9]
Base
  • 3
  • 9
  • 9
TopValue
30
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":2,"c":0,"v":3}