starter Set 30 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [_, 8] → [_, 7, 1]

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Answer: Row3[1]=4, Row2[1]=11

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [11,8]
  • [4,7,1]
Base
  • 4
  • 7
  • 1
TopValue
19
HiddenCells
  • {"r":2,"c":0,"v":4}
  • {"r":1,"c":0,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 7] → [9, 4, _]

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Answer: Row3[3]=3, Row1[1]=20

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [13,7]
  • [9,4,3]
Base
  • 9
  • 4
  • 3
TopValue
20
HiddenCells
  • {"r":2,"c":2,"v":3}
  • {"r":0,"c":0,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [_, _] → [3, 10, 2]

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Answer: Row2[1]=13, Row2[2]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [13,12]
  • [3,10,2]
Base
  • 3
  • 10
  • 2
TopValue
25
HiddenCells
  • {"r":1,"c":0,"v":13}
  • {"r":1,"c":1,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [4, 9] → [_, 2, 7]

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Answer: Row3[1]=2, Row1[1]=13

SubType
number-pyramid
Difficulty
starter
Levels
  • [13]
  • [4,9]
  • [2,2,7]
Base
  • 2
  • 2
  • 7
TopValue
13
HiddenCells
  • {"r":2,"c":0,"v":2}
  • {"r":0,"c":0,"v":13}