starter Set 89 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [30] → [18, 12] → [_, _, 4]

Show answer

Answer: Row3[1]=10, Row3[2]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [30]
  • [18,12]
  • [10,8,4]
Base
  • 10
  • 8
  • 4
TopValue
30
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":2,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [24] → [_, _] → [9, 5, 5]

Show answer

Answer: Row2[2]=10, Row2[1]=14

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [14,10]
  • [9,5,5]
Base
  • 9
  • 5
  • 5
TopValue
24
HiddenCells
  • {"r":1,"c":1,"v":10}
  • {"r":1,"c":0,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, _] → [10, 1, 9]

Show answer

Answer: Row2[2]=10, Row1[1]=21

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [11,10]
  • [10,1,9]
Base
  • 10
  • 1
  • 9
TopValue
21
HiddenCells
  • {"r":1,"c":1,"v":10}
  • {"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): [_] → [14, 8] → [10, _, 4]

Show answer

Answer: Row3[2]=4, Row1[1]=22

SubType
number-pyramid
Difficulty
starter
Levels
  • [22]
  • [14,8]
  • [10,4,4]
Base
  • 10
  • 4
  • 4
TopValue
22
HiddenCells
  • {"r":2,"c":1,"v":4}
  • {"r":0,"c":0,"v":22}