starter Set 51 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [16, 12] → [_, _, 4]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [16,12]
  • [8,8,4]
Base
  • 8
  • 8
  • 4
TopValue
28
HiddenCells
  • {"r":2,"c":1,"v":8}
  • {"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): [_] → [11, 18] → [_, 9, 9]

Show answer

Answer: Row1[1]=29, Row3[1]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [29]
  • [11,18]
  • [2,9,9]
Base
  • 2
  • 9
  • 9
TopValue
29
HiddenCells
  • {"r":0,"c":0,"v":29}
  • {"r":2,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [5, _] → [2, 3, 8]

Show answer

Answer: Row1[1]=16, Row2[2]=11

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [5,11]
  • [2,3,8]
Base
  • 2
  • 3
  • 8
TopValue
16
HiddenCells
  • {"r":0,"c":0,"v":16}
  • {"r":1,"c":1,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [9, _] → [_, 5, 3]

Show answer

Answer: Row3[1]=4, Row2[2]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [9,8]
  • [4,5,3]
Base
  • 4
  • 5
  • 3
TopValue
17
HiddenCells
  • {"r":2,"c":0,"v":4}
  • {"r":1,"c":1,"v":8}