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): [31] → [20, _] → [10, _, 1]

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Answer: Row2[2]=11, Row3[2]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [20,11]
  • [10,10,1]
Base
  • 10
  • 10
  • 1
TopValue
31
HiddenCells
  • {"r":1,"c":1,"v":11}
  • {"r":2,"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): [28] → [_, _] → [4, 8, 8]

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Answer: Row2[1]=12, Row2[2]=16

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [12,16]
  • [4,8,8]
Base
  • 4
  • 8
  • 8
TopValue
28
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"r":1,"c":1,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, 15] → [3, 5, _]

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Answer: Row1[1]=23, Row3[3]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [8,15]
  • [3,5,10]
Base
  • 3
  • 5
  • 10
TopValue
23
HiddenCells
  • {"r":0,"c":0,"v":23}
  • {"r":2,"c":2,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [15, 7] → [_, 6, 1]

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Answer: Row3[1]=9, Row1[1]=22

SubType
number-pyramid
Difficulty
starter
Levels
  • [22]
  • [15,7]
  • [9,6,1]
Base
  • 9
  • 6
  • 1
TopValue
22
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":0,"c":0,"v":22}