expert Set 77 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [12, _] → [_, 9, 7]

Show answer

Answer: Row2[2]=16, Row3[1]=3

SubType
number-pyramid
Difficulty
expert
Levels
  • [28]
  • [12,16]
  • [3,9,7]
Base
  • 3
  • 9
  • 7
TopValue
28
HiddenCells
  • {"r":1,"c":1,"v":16}
  • {"r":2,"c":0,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [18, 9] → [_, 8, 1]

Show answer

Answer: Row1[1]=27, Row3[1]=10

SubType
number-pyramid
Difficulty
expert
Levels
  • [27]
  • [18,9]
  • [10,8,1]
Base
  • 10
  • 8
  • 1
TopValue
27
HiddenCells
  • {"r":0,"c":0,"v":27}
  • {"r":2,"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): [27] → [15, _] → [10, 5, _]

Show answer

Answer: Row3[3]=7, Row2[2]=12

SubType
number-pyramid
Difficulty
expert
Levels
  • [27]
  • [15,12]
  • [10,5,7]
Base
  • 10
  • 5
  • 7
TopValue
27
HiddenCells
  • {"r":2,"c":2,"v":7}
  • {"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): [_] → [4, 10] → [3, _, 9]

Show answer

Answer: Row3[2]=1, Row1[1]=14

SubType
number-pyramid
Difficulty
expert
Levels
  • [14]
  • [4,10]
  • [3,1,9]
Base
  • 3
  • 1
  • 9
TopValue
14
HiddenCells
  • {"r":2,"c":1,"v":1}
  • {"r":0,"c":0,"v":14}