starter Set 45 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [13] → [8, _] → [5, _, 2]

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [13]
  • [8,5]
  • [5,3,2]
Base
  • 5
  • 3
  • 2
TopValue
13
HiddenCells
  • {"r":1,"c":1,"v":5}
  • {"r":2,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [32] → [15, 17] → [8, _, _]

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Answer: Row3[2]=7, Row3[3]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [32]
  • [15,17]
  • [8,7,10]
Base
  • 8
  • 7
  • 10
TopValue
32
HiddenCells
  • {"r":2,"c":1,"v":7}
  • {"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): [12] → [4, 8] → [3, _, _]

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Answer: Row3[2]=1, Row3[3]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [12]
  • [4,8]
  • [3,1,7]
Base
  • 3
  • 1
  • 7
TopValue
12
HiddenCells
  • {"r":2,"c":1,"v":1}
  • {"r":2,"c":2,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [9, 12] → [_, _, 5]

Show answer

Answer: Row3[1]=2, Row3[2]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [9,12]
  • [2,7,5]
Base
  • 2
  • 7
  • 5
TopValue
21
HiddenCells
  • {"r":2,"c":0,"v":2}
  • {"r":2,"c":1,"v":7}