starter Set 20 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [17, _] → [7, _, 1]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [17,11]
  • [7,10,1]
Base
  • 7
  • 10
  • 1
TopValue
28
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): [_] → [_, 11] → [1, 8, 3]

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Answer: Row1[1]=20, Row2[1]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [9,11]
  • [1,8,3]
Base
  • 1
  • 8
  • 3
TopValue
20
HiddenCells
  • {"r":0,"c":0,"v":20}
  • {"r":1,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, 10] → [_, 1, 9]

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Answer: Row1[1]=18, Row3[1]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [8,10]
  • [7,1,9]
Base
  • 7
  • 1
  • 9
TopValue
18
HiddenCells
  • {"r":0,"c":0,"v":18}
  • {"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): [15] → [7, _] → [2, _, 3]

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Answer: Row2[2]=8, Row3[2]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [7,8]
  • [2,5,3]
Base
  • 2
  • 5
  • 3
TopValue
15
HiddenCells
  • {"r":1,"c":1,"v":8}
  • {"r":2,"c":1,"v":5}