starter Set 26 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [13] → [10, 3] → [_, _, 1]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [13]
  • [10,3]
  • [8,2,1]
Base
  • 8
  • 2
  • 1
TopValue
13
HiddenCells
  • {"r":2,"c":1,"v":2}
  • {"r":2,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [11] → [4, _] → [1, _, 4]

Show answer

Answer: Row2[2]=7, Row3[2]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [11]
  • [4,7]
  • [1,3,4]
Base
  • 1
  • 3
  • 4
TopValue
11
HiddenCells
  • {"r":1,"c":1,"v":7}
  • {"r":2,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 12] → [3, 4, 8]

Show answer

Answer: Row2[1]=7, Row1[1]=19

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [7,12]
  • [3,4,8]
Base
  • 3
  • 4
  • 8
TopValue
19
HiddenCells
  • {"r":1,"c":0,"v":7}
  • {"r":0,"c":0,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [_, 11] → [_, 6, 5]

Show answer

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

SubType
number-pyramid
Difficulty
starter
Levels
  • [19]
  • [8,11]
  • [2,6,5]
Base
  • 2
  • 6
  • 5
TopValue
19
HiddenCells
  • {"r":1,"c":0,"v":8}
  • {"r":2,"c":0,"v":2}