expert Set 50 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [_, 10] → [_, 7, 3]

Show answer

Answer: Row2[1]=11, Row3[1]=4

SubType
number-pyramid
Difficulty
expert
Levels
  • [21]
  • [11,10]
  • [4,7,3]
Base
  • 4
  • 7
  • 3
TopValue
21
HiddenCells
  • {"r":1,"c":0,"v":11}
  • {"r":2,"c":0,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [35] → [17, _] → [_, 9, 9]

Show answer

Answer: Row2[2]=18, Row3[1]=8

SubType
number-pyramid
Difficulty
expert
Levels
  • [35]
  • [17,18]
  • [8,9,9]
Base
  • 8
  • 9
  • 9
TopValue
35
HiddenCells
  • {"r":1,"c":1,"v":18}
  • {"r":2,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 8] → [7, 5, _]

Show answer

Answer: Row3[3]=3, Row1[1]=20

SubType
number-pyramid
Difficulty
expert
Levels
  • [20]
  • [12,8]
  • [7,5,3]
Base
  • 7
  • 5
  • 3
TopValue
20
HiddenCells
  • {"r":2,"c":2,"v":3}
  • {"r":0,"c":0,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [4, 4] → [2, 2, _]

Show answer

Answer: Row1[1]=8, Row3[3]=2

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