expert Set 67 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 6] → [9, 3, _]

Show answer

Answer: Row3[3]=3, Row1[1]=18

SubType
number-pyramid
Difficulty
expert
Levels
  • [18]
  • [12,6]
  • [9,3,3]
Base
  • 9
  • 3
  • 3
TopValue
18
HiddenCells
  • {"r":2,"c":2,"v":3}
  • {"r":0,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [6, 14] → [_, _, 9]

Show answer

Answer: Row3[1]=1, Row3[2]=5

SubType
number-pyramid
Difficulty
expert
Levels
  • [20]
  • [6,14]
  • [1,5,9]
Base
  • 1
  • 5
  • 9
TopValue
20
HiddenCells
  • {"r":2,"c":0,"v":1}
  • {"r":2,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [32] → [13, _] → [3, _, 9]

Show answer

Answer: Row2[2]=19, Row3[2]=10

SubType
number-pyramid
Difficulty
expert
Levels
  • [32]
  • [13,19]
  • [3,10,9]
Base
  • 3
  • 10
  • 9
TopValue
32
HiddenCells
  • {"r":1,"c":1,"v":19}
  • {"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): [_] → [11, 12] → [7, _, 8]

Show answer

Answer: Row3[2]=4, Row1[1]=23

SubType
number-pyramid
Difficulty
expert
Levels
  • [23]
  • [11,12]
  • [7,4,8]
Base
  • 7
  • 4
  • 8
TopValue
23
HiddenCells
  • {"r":2,"c":1,"v":4}
  • {"r":0,"c":0,"v":23}