starter Set 61 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [9, _] → [2, _, 7]

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Answer: Row2[2]=14, Row3[2]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [9,14]
  • [2,7,7]
Base
  • 2
  • 7
  • 7
TopValue
23
HiddenCells
  • {"r":1,"c":1,"v":14}
  • {"r":2,"c":1,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 11] → [2, 8, 3]

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Answer: Row1[1]=21, Row2[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [10,11]
  • [2,8,3]
Base
  • 2
  • 8
  • 3
TopValue
21
HiddenCells
  • {"r":0,"c":0,"v":21}
  • {"r":1,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [29] → [_, 12] → [9, 8, _]

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Answer: Row3[3]=4, Row2[1]=17

SubType
number-pyramid
Difficulty
starter
Levels
  • [29]
  • [17,12]
  • [9,8,4]
Base
  • 9
  • 8
  • 4
TopValue
29
HiddenCells
  • {"r":2,"c":2,"v":4}
  • {"r":1,"c":0,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [14, _] → [7, 7, 2]

Show answer

Answer: Row2[2]=9, Row1[1]=23

SubType
number-pyramid
Difficulty
starter
Levels
  • [23]
  • [14,9]
  • [7,7,2]
Base
  • 7
  • 7
  • 2
TopValue
23
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"r":0,"c":0,"v":23}