starter Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [9, _] → [8, _, 9]

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Answer: Row2[2]=10, Row3[2]=1

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [9,10]
  • [8,1,9]
Base
  • 8
  • 1
  • 9
TopValue
19
HiddenCells
  • {"r":1,"c":1,"v":10}
  • {"r":2,"c":1,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [22] → [_, 14] → [_, 4, 10]

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Answer: Row2[1]=8, Row3[1]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [22]
  • [8,14]
  • [4,4,10]
Base
  • 4
  • 4
  • 10
TopValue
22
HiddenCells
  • {"r":1,"c":0,"v":8}
  • {"r":2,"c":0,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [_, 10] → [_, 3, 7]

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Answer: Row2[1]=9, Row3[1]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [9,10]
  • [6,3,7]
Base
  • 6
  • 3
  • 7
TopValue
19
HiddenCells
  • {"r":1,"c":0,"v":9}
  • {"r":2,"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): [8] → [_, 6] → [1, 1, _]

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Answer: Row3[3]=5, Row2[1]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [8]
  • [2,6]
  • [1,1,5]
Base
  • 1
  • 1
  • 5
TopValue
8
HiddenCells
  • {"r":2,"c":2,"v":5}
  • {"r":1,"c":0,"v":2}