starter Set 74 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, 6]

Show answer

Answer: Row3[1]=9, Row1[1]=21

SubType
number-pyramid
Difficulty
starter
Levels
  • [21]
  • [12,9]
  • [9,3,6]
Base
  • 9
  • 3
  • 6
TopValue
21
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"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): [26] → [13, _] → [5, _, 5]

Show answer

Answer: Row2[2]=13, Row3[2]=8

SubType
number-pyramid
Difficulty
starter
Levels
  • [26]
  • [13,13]
  • [5,8,5]
Base
  • 5
  • 8
  • 5
TopValue
26
HiddenCells
  • {"r":1,"c":1,"v":13}
  • {"r":2,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [_, _] → [5, 5, 5]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [20]
  • [10,10]
  • [5,5,5]
Base
  • 5
  • 5
  • 5
TopValue
20
HiddenCells
  • {"r":1,"c":0,"v":10}
  • {"r":1,"c":1,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [10] → [6, 4] → [_, _, 2]

Show answer

Answer: Row3[1]=4, Row3[2]=2

SubType
number-pyramid
Difficulty
starter
Levels
  • [10]
  • [6,4]
  • [4,2,2]
Base
  • 4
  • 2
  • 2
TopValue
10
HiddenCells
  • {"r":2,"c":0,"v":4}
  • {"r":2,"c":1,"v":2}