starter Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [11, _] → [8, 3, _]

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Answer: Row2[2]=9, Row3[3]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [11,9]
  • [8,3,6]
Base
  • 8
  • 3
  • 6
TopValue
20
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"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): [8] → [4, _] → [2, 2, _]

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Answer: Row3[3]=2, Row2[2]=4

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [14, 8] → [9, _, 3]

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Answer: Row3[2]=5, Row1[1]=22

SubType
number-pyramid
Difficulty
starter
Levels
  • [22]
  • [14,8]
  • [9,5,3]
Base
  • 9
  • 5
  • 3
TopValue
22
HiddenCells
  • {"r":2,"c":1,"v":5}
  • {"r":0,"c":0,"v":22}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [_, 10] → [6, 3, _]

Show answer

Answer: Row2[1]=9, Row3[3]=7

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":2,"v":7}