starter Set 69 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [_, 9] → [1, _, 2]

Show answer

Answer: Row2[1]=8, Row3[2]=7

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [8,9]
  • [1,7,2]
Base
  • 1
  • 7
  • 2
TopValue
17
HiddenCells
  • {"r":1,"c":0,"v":8}
  • {"r":2,"c":1,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 14] → [3, 4, 10]

Show answer

Answer: Row2[1]=7, Row1[1]=21

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [7,14]
  • [3,4,10]
Base
  • 3
  • 4
  • 10
TopValue
21
HiddenCells
  • {"r":1,"c":0,"v":7}
  • {"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): [17] → [5, 12] → [1, _, _]

Show answer

Answer: Row3[3]=8, Row3[2]=4

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [5,12]
  • [1,4,8]
Base
  • 1
  • 4
  • 8
TopValue
17
HiddenCells
  • {"r":2,"c":2,"v":8}
  • {"r":2,"c":1,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 7] → [8, 2, 5]

Show answer

Answer: Row1[1]=17, Row2[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [17]
  • [10,7]
  • [8,2,5]
Base
  • 8
  • 2
  • 5
TopValue
17
HiddenCells
  • {"r":0,"c":0,"v":17}
  • {"r":1,"c":0,"v":10}