starter Set 82 Form Exercise

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

Show answer

Answer: Row2[1]=20, Row1[1]=31

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [20,11]
  • [10,10,1]
Base
  • 10
  • 10
  • 1
TopValue
31
HiddenCells
  • {"r":1,"c":0,"v":20}
  • {"r":0,"c":0,"v":31}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [16] → [8, _] → [3, 5, _]

Show answer

Answer: Row2[2]=8, Row3[3]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [16]
  • [8,8]
  • [3,5,3]
Base
  • 3
  • 5
  • 3
TopValue
16
HiddenCells
  • {"r":1,"c":1,"v":8}
  • {"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): [28] → [18, _] → [_, 8, 2]

Show answer

Answer: Row2[2]=10, Row3[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [18,10]
  • [10,8,2]
Base
  • 10
  • 8
  • 2
TopValue
28
HiddenCells
  • {"r":1,"c":1,"v":10}
  • {"r":2,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [_, 10] → [_, 6, 4]

Show answer

Answer: Row2[1]=7, Row3[1]=1

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [7,10]
  • [1,6,4]
Base
  • 1
  • 6
  • 4
TopValue
17
HiddenCells
  • {"r":1,"c":0,"v":7}
  • {"r":2,"c":0,"v":1}