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): [19] → [10, _] → [3, 7, _]

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Answer: Row3[3]=2, Row2[2]=9

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [16] → [_, 5] → [9, 2, _]

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Answer: Row2[1]=11, Row3[3]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [11,5]
  • [9,2,3]
Base
  • 9
  • 2
  • 3
TopValue
16
HiddenCells
  • {"r":1,"c":0,"v":11}
  • {"r":2,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [16, 16] → [6, 10, _]

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Answer: Row1[1]=32, Row3[3]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [32]
  • [16,16]
  • [6,10,6]
Base
  • 6
  • 10
  • 6
TopValue
32
HiddenCells
  • {"r":0,"c":0,"v":32}
  • {"r":2,"c":2,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [10, 11] → [_, 6, _]

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Answer: Row3[1]=4, Row3[3]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [10,11]
  • [4,6,5]
Base
  • 4
  • 6
  • 5
TopValue
21
HiddenCells
  • {"r":2,"c":0,"v":4}
  • {"r":2,"c":2,"v":5}