Åk 6–9
  • Start
  • 1. Welcome to Decimals
  • 2. From Fractions to Decimals
  • 3. Comparisons
  • 4. Rounding Off
  • 5. Addition and Subtraction
  • 6. Multiplication
  • 7. Division
  • 8. Small numbers with words
    		•  
    English/Soomaali
    5.1 Addition and Subtraction Part of the Same Size
    Words
    3 tenths
    		+
    2 tenths
    =
    5 tenths
    Fraction Form
    +
    =
    Pictures
    +
    =
               
    Decimal Form
    0.3
    +
    0.2
    =
    0.5


    Words
    6 tenths
    		-
    2 tenths
    =
    4 tenths
    Fraction Form
    		-
    =
    Pictures
    		-
    =
               
    Decimal Form
    0.6
    -
    0.2
    =
    0.4



    Here is an example where we add the parts of the same sort and get a result larger than one.
    Words
    7 tenths
    		+
    5 tenths
    =
    1 whole 2 tenths
    Fraction Form
    +
    =
    		=
    Pictures
    +
    =

               
    Decimal Form
    0.7
    +
    0.5
    =
    1.2



    Here is a last example where we subtract parts of the same sort.

    Words
    7 fifths
    		-
    4 fifths
    =
    3 fifths
    Fraction Form
    -
    		=

    Expanded to tenths

    		-
    =
    Pictures

    -
    =
    Decimal Form
    1.4
    -
    0.8
    =
    0.6