expert Set 28 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [8, _] → [3, 5, _]

Show answer

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

SubType
number-pyramid
Difficulty
expert
Levels
  • [20]
  • [8,12]
  • [3,5,7]
Base
  • 3
  • 5
  • 7
TopValue
20
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): [21] → [10, 11] → [7, _, _]

Show answer

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

SubType
number-pyramid
Difficulty
expert
Levels
  • [21]
  • [10,11]
  • [7,3,8]
Base
  • 7
  • 3
  • 8
TopValue
21
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":2,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [13, 4] → [_, _, 1]

Show answer

Answer: Row3[2]=3, Row3[1]=10

SubType
number-pyramid
Difficulty
expert
Levels
  • [17]
  • [13,4]
  • [10,3,1]
Base
  • 10
  • 3
  • 1
TopValue
17
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"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): [30] → [_, 15] → [10, 5, _]

Show answer

Answer: Row3[3]=10, Row2[1]=15

SubType
number-pyramid
Difficulty
expert
Levels
  • [30]
  • [15,15]
  • [10,5,10]
Base
  • 10
  • 5
  • 10
TopValue
30
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"r":1,"c":0,"v":15}