starter Set 27 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [14] → [_, 4] → [_, 1, 3]

Show answer

Answer: Row3[1]=9, Row2[1]=10

SubType
number-pyramid
Difficulty
starter
Levels
  • [14]
  • [10,4]
  • [9,1,3]
Base
  • 9
  • 1
  • 3
TopValue
14
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":1,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [15] → [4, _] → [_, 1, 10]

Show answer

Answer: Row2[2]=11, Row3[1]=3

SubType
number-pyramid
Difficulty
starter
Levels
  • [15]
  • [4,11]
  • [3,1,10]
Base
  • 3
  • 1
  • 10
TopValue
15
HiddenCells
  • {"r":1,"c":1,"v":11}
  • {"r":2,"c":0,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 19] → [3, _, 10]

Show answer

Answer: Row1[1]=31, Row3[2]=9

SubType
number-pyramid
Difficulty
starter
Levels
  • [31]
  • [12,19]
  • [3,9,10]
Base
  • 3
  • 9
  • 10
TopValue
31
HiddenCells
  • {"r":0,"c":0,"v":31}
  • {"r":2,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 14] → [_, 9, 5]

Show answer

Answer: Row3[1]=3, Row1[1]=26

SubType
number-pyramid
Difficulty
starter
Levels
  • [26]
  • [12,14]
  • [3,9,5]
Base
  • 3
  • 9
  • 5
TopValue
26
HiddenCells
  • {"r":2,"c":0,"v":3}
  • {"r":0,"c":0,"v":26}