easy Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [40] → [_, 20] → [10, _, 10]

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Answer: Row2[1]=20, Row3[2]=10

SubType
number-pyramid
Difficulty
easy
Levels
  • [40]
  • [20,20]
  • [10,10,10]
Base
  • 10
  • 10
  • 10
TopValue
40
HiddenCells
  • {"r":1,"c":0,"v":20}
  • {"r":2,"c":1,"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, _] → [1, 3, _]

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Answer: Row2[2]=8, Row3[3]=5

SubType
number-pyramid
Difficulty
easy
Levels
  • [12]
  • [4,8]
  • [1,3,5]
Base
  • 1
  • 3
  • 5
TopValue
12
HiddenCells
  • {"r":1,"c":1,"v":8}
  • {"r":2,"c":2,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [15, 14] → [_, 5, 9]

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Answer: Row3[1]=10, Row1[1]=29

SubType
number-pyramid
Difficulty
easy
Levels
  • [29]
  • [15,14]
  • [10,5,9]
Base
  • 10
  • 5
  • 9
TopValue
29
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":0,"c":0,"v":29}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [9] → [4, 5] → [_, _, 4]

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

SubType
number-pyramid
Difficulty
easy
Levels
  • [9]
  • [4,5]
  • [3,1,4]
Base
  • 3
  • 1
  • 4
TopValue
9
HiddenCells
  • {"r":2,"c":1,"v":1}
  • {"r":2,"c":0,"v":3}