starter Set 92 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 12] → [9, 3, 9]

Show answer

Answer: Row2[1]=12, Row1[1]=24

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [12,12]
  • [9,3,9]
Base
  • 9
  • 3
  • 9
TopValue
24
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"r":0,"c":0,"v":24}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [11] → [_, 6] → [2, _, 3]

Show answer

Answer: Row3[2]=3, Row2[1]=5

SubType
number-pyramid
Difficulty
starter
Levels
  • [11]
  • [5,6]
  • [2,3,3]
Base
  • 2
  • 3
  • 3
TopValue
11
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":1,"c":0,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [_, 12] → [6, 9, _]

Show answer

Answer: Row2[1]=15, Row3[3]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [27]
  • [15,12]
  • [6,9,3]
Base
  • 6
  • 9
  • 3
TopValue
27
HiddenCells
  • {"r":1,"c":0,"v":15}
  • {"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): [25] → [15, _] → [7, _, 2]

Show answer

Answer: Row3[2]=8, Row2[2]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [25]
  • [15,10]
  • [7,8,2]
Base
  • 7
  • 8
  • 2
TopValue
25
HiddenCells
  • {"r":2,"c":1,"v":8}
  • {"r":1,"c":1,"v":10}