starter Set 11 Form Exercise

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

Show answer

Answer: Row3[2]=8, Row1[1]=18

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [9,9]
  • [1,8,1]
Base
  • 1
  • 8
  • 1
TopValue
18
HiddenCells
  • {"r":2,"c":1,"v":8}
  • {"r":0,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 18] → [7, 10, 8]

Show answer

Answer: Row1[1]=35, Row2[1]=17

SubType
number-pyramid
Difficulty
starter
Levels
  • [35]
  • [17,18]
  • [7,10,8]
Base
  • 7
  • 10
  • 8
TopValue
35
HiddenCells
  • {"r":0,"c":0,"v":35}
  • {"r":1,"c":0,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [17, _] → [8, 9, 3]

Show answer

Answer: Row2[2]=12, Row1[1]=29

SubType
number-pyramid
Difficulty
starter
Levels
  • [29]
  • [17,12]
  • [8,9,3]
Base
  • 8
  • 9
  • 3
TopValue
29
HiddenCells
  • {"r":1,"c":1,"v":12}
  • {"r":0,"c":0,"v":29}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [7] → [_, 4] → [_, 2, 2]

Show answer

Answer: Row3[1]=1, Row2[1]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [7]
  • [3,4]
  • [1,2,2]
Base
  • 1
  • 2
  • 2
TopValue
7
HiddenCells
  • {"r":2,"c":0,"v":1}
  • {"r":1,"c":0,"v":3}