starter Set 50 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 12] → [_, 9, 3]

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Answer: Row1[1]=25, Row3[1]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [13,12]
  • [4,9,3]
Base
  • 4
  • 9
  • 3
TopValue
25
HiddenCells
  • {"r":0,"c":0,"v":25}
  • {"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): [25] → [_, 17] → [_, 7, 10]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [8,17]
  • [1,7,10]
Base
  • 1
  • 7
  • 10
TopValue
25
HiddenCells
  • {"r":2,"c":0,"v":1}
  • {"r":1,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [12, _] → [6, 6, _]

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Answer: Row2[2]=16, Row3[3]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [12,16]
  • [6,6,10]
Base
  • 6
  • 6
  • 10
TopValue
28
HiddenCells
  • {"r":1,"c":1,"v":16}
  • {"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): [11] → [7, 4] → [_, 3, _]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [11]
  • [7,4]
  • [4,3,1]
Base
  • 4
  • 3
  • 1
TopValue
11
HiddenCells
  • {"r":2,"c":0,"v":4}
  • {"r":2,"c":2,"v":1}