starter Set 55 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [10, 5] → [8, 2, _]

Show answer

Answer: Row1[1]=15, Row3[3]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [10,5]
  • [8,2,3]
Base
  • 8
  • 2
  • 3
TopValue
15
HiddenCells
  • {"r":0,"c":0,"v":15}
  • {"r":2,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [8, 12] → [_, 2, _]

Show answer

Answer: Row3[3]=10, Row3[1]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [8,12]
  • [6,2,10]
Base
  • 6
  • 2
  • 10
TopValue
20
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"r":2,"c":0,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [16] → [_, 12] → [_, 2, 10]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [4,12]
  • [2,2,10]
Base
  • 2
  • 2
  • 10
TopValue
16
HiddenCells
  • {"r":2,"c":0,"v":2}
  • {"r":1,"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): [8] → [5, 3] → [3, _, _]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [8]
  • [5,3]
  • [3,2,1]
Base
  • 3
  • 2
  • 1
TopValue
8
HiddenCells
  • {"r":2,"c":2,"v":1}
  • {"r":2,"c":1,"v":2}