easy Set 87 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 12] → [10, _, 9]

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Answer: Row3[2]=3, Row1[1]=25

SubType
number-pyramid
Difficulty
easy
Levels
  • [25]
  • [13,12]
  • [10,3,9]
Base
  • 10
  • 3
  • 9
TopValue
25
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":0,"c":0,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [8] → [4, _] → [1, 3, _]

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Answer: Row2[2]=4, Row3[3]=1

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [34] → [_, 17] → [_, 10, 7]

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Answer: Row2[1]=17, Row3[1]=7

SubType
number-pyramid
Difficulty
easy
Levels
  • [34]
  • [17,17]
  • [7,10,7]
Base
  • 7
  • 10
  • 7
TopValue
34
HiddenCells
  • {"r":1,"c":0,"v":17}
  • {"r":2,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [_, _] → [1, 8, 3]

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Answer: Row2[1]=9, Row2[2]=11

SubType
number-pyramid
Difficulty
easy
Levels
  • [20]
  • [9,11]
  • [1,8,3]
Base
  • 1
  • 8
  • 3
TopValue
20
HiddenCells
  • {"r":1,"c":0,"v":9}
  • {"r":1,"c":1,"v":11}