easy Set 78 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, _] → [1, _, 4]

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Answer: Row2[2]=12, Row3[2]=8

SubType
number-pyramid
Difficulty
easy
Levels
  • [21]
  • [9,12]
  • [1,8,4]
Base
  • 1
  • 8
  • 4
TopValue
21
HiddenCells
  • {"r":1,"c":1,"v":12}
  • {"r":2,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [_, 16] → [_, 6, 10]

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Answer: Row3[1]=3, Row2[1]=9

SubType
number-pyramid
Difficulty
easy
Levels
  • [25]
  • [9,16]
  • [3,6,10]
Base
  • 3
  • 6
  • 10
TopValue
25
HiddenCells
  • {"r":2,"c":0,"v":3}
  • {"r":1,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [17, _] → [7, _, 1]

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Answer: Row3[2]=10, Row2[2]=11

SubType
number-pyramid
Difficulty
easy
Levels
  • [28]
  • [17,11]
  • [7,10,1]
Base
  • 7
  • 10
  • 1
TopValue
28
HiddenCells
  • {"r":2,"c":1,"v":10}
  • {"r":1,"c":1,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [30] → [14, 16] → [_, 7, _]

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Answer: Row3[1]=7, Row3[3]=9

SubType
number-pyramid
Difficulty
easy
Levels
  • [30]
  • [14,16]
  • [7,7,9]
Base
  • 7
  • 7
  • 9
TopValue
30
HiddenCells
  • {"r":2,"c":0,"v":7}
  • {"r":2,"c":2,"v":9}