starter Set 86 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [9, _] → [_, 3, 9]

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Answer: Row3[1]=6, Row2[2]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [9,12]
  • [6,3,9]
Base
  • 6
  • 3
  • 9
TopValue
21
HiddenCells
  • {"r":2,"c":0,"v":6}
  • {"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): [21] → [_, 10] → [5, _, 4]

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Answer: Row3[2]=6, Row2[1]=11

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [11,10]
  • [5,6,4]
Base
  • 5
  • 6
  • 4
TopValue
21
HiddenCells
  • {"r":2,"c":1,"v":6}
  • {"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): [10] → [_, 5] → [2, 3, _]

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Answer: Row3[3]=2, Row2[1]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [10]
  • [5,5]
  • [2,3,2]
Base
  • 2
  • 3
  • 2
TopValue
10
HiddenCells
  • {"r":2,"c":2,"v":2}
  • {"r":1,"c":0,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [9, 10] → [_, 5, 5]

Show answer

Answer: Row1[1]=19, Row3[1]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [9,10]
  • [4,5,5]
Base
  • 4
  • 5
  • 5
TopValue
19
HiddenCells
  • {"r":0,"c":0,"v":19}
  • {"r":2,"c":0,"v":4}