starter Set 75 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 10] → [9, _, 7]

Show answer

Answer: Row1[1]=22, Row3[2]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [22]
  • [12,10]
  • [9,3,7]
Base
  • 9
  • 3
  • 7
TopValue
22
HiddenCells
  • {"r":0,"c":0,"v":22}
  • {"r":2,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [30] → [12, 18] → [_, _, 8]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [30]
  • [12,18]
  • [2,10,8]
Base
  • 2
  • 10
  • 8
TopValue
30
HiddenCells
  • {"r":2,"c":1,"v":10}
  • {"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): [36] → [18, _] → [8, 10, _]

Show answer

Answer: Row3[3]=8, Row2[2]=18

SubType
number-pyramid
Difficulty
starter
Levels
  • [36]
  • [18,18]
  • [8,10,8]
Base
  • 8
  • 10
  • 8
TopValue
36
HiddenCells
  • {"r":2,"c":2,"v":8}
  • {"r":1,"c":1,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [36] → [20, _] → [_, 10, 6]

Show answer

Answer: Row3[1]=10, Row2[2]=16

SubType
number-pyramid
Difficulty
starter
Levels
  • [36]
  • [20,16]
  • [10,10,6]
Base
  • 10
  • 10
  • 6
TopValue
36
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":1,"c":1,"v":16}