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): [22] → [_, _] → [9, 2, 9]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [22]
  • [11,11]
  • [9,2,9]
Base
  • 9
  • 2
  • 9
TopValue
22
HiddenCells
  • {"r":1,"c":1,"v":11}
  • {"r":1,"c":0,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [18, 18] → [_, 10, 8]

Show answer

Answer: Row3[1]=8, Row1[1]=36

SubType
number-pyramid
Difficulty
starter
Levels
  • [36]
  • [18,18]
  • [8,10,8]
Base
  • 8
  • 10
  • 8
TopValue
36
HiddenCells
  • {"r":2,"c":0,"v":8}
  • {"r":0,"c":0,"v":36}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, 2] → [10, _, 1]

Show answer

Answer: Row1[1]=13, Row3[2]=1

SubType
number-pyramid
Difficulty
starter
Levels
  • [13]
  • [11,2]
  • [10,1,1]
Base
  • 10
  • 1
  • 1
TopValue
13
HiddenCells
  • {"r":0,"c":0,"v":13}
  • {"r":2,"c":1,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, 8] → [2, 6, _]

Show answer

Answer: Row3[3]=2, Row1[1]=16

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [8,8]
  • [2,6,2]
Base
  • 2
  • 6
  • 2
TopValue
16
HiddenCells
  • {"r":2,"c":2,"v":2}
  • {"r":0,"c":0,"v":16}