starter Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 8] → [7, 5, _]

Show answer

Answer: Row1[1]=20, Row3[3]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [12,8]
  • [7,5,3]
Base
  • 7
  • 5
  • 3
TopValue
20
HiddenCells
  • {"r":0,"c":0,"v":20}
  • {"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): [_] → [14, 10] → [_, 8, 2]

Show answer

Answer: Row1[1]=24, Row3[1]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [24]
  • [14,10]
  • [6,8,2]
Base
  • 6
  • 8
  • 2
TopValue
24
HiddenCells
  • {"r":0,"c":0,"v":24}
  • {"r":2,"c":0,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [13, _] → [4, 9, _]

Show answer

Answer: Row2[2]=15, Row3[3]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [28]
  • [13,15]
  • [4,9,6]
Base
  • 4
  • 9
  • 6
TopValue
28
HiddenCells
  • {"r":1,"c":1,"v":15}
  • {"r":2,"c":2,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [10, _] → [8, 2, _]

Show answer

Answer: Row2[2]=8, Row3[3]=6

SubType
number-pyramid
Difficulty
starter
Levels
  • [18]
  • [10,8]
  • [8,2,6]
Base
  • 8
  • 2
  • 6
TopValue
18
HiddenCells
  • {"r":1,"c":1,"v":8}
  • {"r":2,"c":2,"v":6}