starter Set 39 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [11, 10] → [_, _, 5]

Show answer

Answer: Row3[2]=5, Row3[1]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [11,10]
  • [6,5,5]
Base
  • 6
  • 5
  • 5
TopValue
21
HiddenCells
  • {"r":2,"c":1,"v":5}
  • {"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): [6] → [2, _] → [_, 1, 3]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [6]
  • [2,4]
  • [1,1,3]
Base
  • 1
  • 1
  • 3
TopValue
6
HiddenCells
  • {"r":2,"c":0,"v":1}
  • {"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): [_] → [7, 14] → [2, 5, _]

Show answer

Answer: Row3[3]=9, Row1[1]=21

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [7,14]
  • [2,5,9]
Base
  • 2
  • 5
  • 9
TopValue
21
HiddenCells
  • {"r":2,"c":2,"v":9}
  • {"r":0,"c":0,"v":21}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [_, _] → [10, 2, 4]

Show answer

Answer: Row2[2]=6, Row2[1]=12

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [12,6]
  • [10,2,4]
Base
  • 10
  • 2
  • 4
TopValue
18
HiddenCells
  • {"r":1,"c":1,"v":6}
  • {"r":1,"c":0,"v":12}