expert Set 20 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [_, 9] → [8, _, 7]

Show answer

Answer: Row2[1]=10, Row3[2]=2

SubType
number-pyramid
Difficulty
expert
Levels
  • [19]
  • [10,9]
  • [8,2,7]
Base
  • 8
  • 2
  • 7
TopValue
19
HiddenCells
  • {"r":1,"c":0,"v":10}
  • {"r":2,"c":1,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [5, _] → [4, 1, 3]

Show answer

Answer: Row1[1]=9, Row2[2]=4

SubType
number-pyramid
Difficulty
expert
Levels
  • [9]
  • [5,4]
  • [4,1,3]
Base
  • 4
  • 1
  • 3
TopValue
9
HiddenCells
  • {"r":0,"c":0,"v":9}
  • {"r":1,"c":1,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [40] → [20, _] → [_, 10, 10]

Show answer

Answer: Row3[1]=10, Row2[2]=20

SubType
number-pyramid
Difficulty
expert
Levels
  • [40]
  • [20,20]
  • [10,10,10]
Base
  • 10
  • 10
  • 10
TopValue
40
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":1,"c":1,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [12, _] → [3, _, 4]

Show answer

Answer: Row2[2]=13, Row3[2]=9

SubType
number-pyramid
Difficulty
expert
Levels
  • [25]
  • [12,13]
  • [3,9,4]
Base
  • 3
  • 9
  • 4
TopValue
25
HiddenCells
  • {"r":1,"c":1,"v":13}
  • {"r":2,"c":1,"v":9}