starter Set 27 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [11, _] → [_, 6, 10]

Show answer

Answer: Row2[2]=16, Row3[1]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [27]
  • [11,16]
  • [5,6,10]
Base
  • 5
  • 6
  • 10
TopValue
27
HiddenCells
  • {"r":1,"c":1,"v":16}
  • {"r":2,"c":0,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [_, 9] → [_, 7, 2]

Show answer

Answer: Row3[1]=5, Row2[1]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [12,9]
  • [5,7,2]
Base
  • 5
  • 7
  • 2
TopValue
21
HiddenCells
  • {"r":2,"c":0,"v":5}
  • {"r":1,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [12, 5] → [9, _, _]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [12,5]
  • [9,3,2]
Base
  • 9
  • 3
  • 2
TopValue
17
HiddenCells
  • {"r":2,"c":2,"v":2}
  • {"r":2,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [15] → [_, 11] → [_, 2, 9]

Show answer

Answer: Row2[1]=4, Row3[1]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [4,11]
  • [2,2,9]
Base
  • 2
  • 2
  • 9
TopValue
15
HiddenCells
  • {"r":1,"c":0,"v":4}
  • {"r":2,"c":0,"v":2}