starter Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [_, 13] → [10, _, 8]

Show answer

Answer: Row2[1]=15, Row3[2]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [15,13]
  • [10,5,8]
Base
  • 10
  • 5
  • 8
TopValue
28
HiddenCells
  • {"r":1,"c":0,"v":15}
  • {"r":2,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [_, 11] → [7, _, 2]

Show answer

Answer: Row2[1]=16, Row3[2]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [27]
  • [16,11]
  • [7,9,2]
Base
  • 7
  • 9
  • 2
TopValue
27
HiddenCells
  • {"r":1,"c":0,"v":16}
  • {"r":2,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 9] → [7, _, 4]

Show answer

Answer: Row1[1]=21, Row3[2]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [12,9]
  • [7,5,4]
Base
  • 7
  • 5
  • 4
TopValue
21
HiddenCells
  • {"r":0,"c":0,"v":21}
  • {"r":2,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 8] → [8, 5, 3]

Show answer

Answer: Row1[1]=21, Row2[1]=13

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [13,8]
  • [8,5,3]
Base
  • 8
  • 5
  • 3
TopValue
21
HiddenCells
  • {"r":0,"c":0,"v":21}
  • {"r":1,"c":0,"v":13}