Exercises: addition and subtraction of decimal numbers

Subtract the following decimal numbers:

$0.45 - 0.29$

For this task you need the following basic knowledge: Addition and subtraction of decimal numbers
$0.45 - 0.29$
Write the figures one below the other. Make sure that the decimal marks are directly underneath each other.
$\begin{array}{l} 0.4 5 \\ - 0.2 9 \end{array}$
Now, perform a subtraction in columns.
$\begin{array}{l} 0. \overset{3}{4} \overset{15}{5} \\ - 0.2 9 \\ 0.1 6 \end{array}$
$0.965 - 0.83$

For this task you need the following basic knowledge: Addition and subtraction of decimal numbers
$0.965 - 0.83$
Write the figures one below the other. Make sure that the decimal marks are directly underneath each other. Fill up the "shorter number" ( $0.83$ ) with zeros.
$\begin{array}{l} 0.965 \\ - 0.830 \end{array}$
Now, perform a subtraction in columns.
$\begin{array}{l} 0.965 \\ - 0.830 \\ 0.135 \end{array}$
$1.782 - 0.234$

For this task you need the following basic knowledge: Addition and subtraction of decimal numbers
$1.782 - 0.234$
Write the figures one below the other. Make sure that the decimal marks are directly underneath each other.
$\begin{array}{l} 1.7 8 2 \\ - 0.2 3 4 \end{array}$
Now, perform a subtraction in columns.
$\begin{array}{l} 1.7 \overset{7}{8} \overset{12}{2} \\ - 0.2 3 4 \\ 1.5 4 8 \end{array}$
$34.98 - 1.061$

For this task you need the following basic knowledge: Addition and subtraction of decimal numbers
$34.98 - 1.061$
Write the figures one below the other. Make sure that the decimal marks are directly underneath each other. Fill up the "shorter number" ( $34.98$ ) with zeros.
$\begin{array}{l} 3 4.9 8 0 \\ - 1.0 6 1 \end{array}$
Now, perform a subtraction in columns.
$\begin{array}{l} 3 4.9 \overset{7}{8} \overset{10}{0} \\ - 1.0 6 1 \\ 3 3.9 1 9 \end{array}$
$4.913 - 2.911$

For this task you need the following basic knowledge: Addition and subtraction of decimal numbers
$4.913 - 2.911$
Write the figures one below the other. Make sure that the decimal marks are directly underneath each other.
$\begin{array}{l} 4.913 \\ - 2.911 \end{array}$
Now, perform a subtraction in columns.
$\begin{array}{l} 4.913 \\ - 2.911 \\ 2.002 \end{array}$
$2.043 - 1.921$

For this task you need the following basic knowledge: Addition and subtraction of decimal numbers
$2.043 - 1.921$
Write the figures one below the other. Make sure that the decimal marks are directly underneath each other.
$\begin{array}{l} 2. 043 \\ - 1. 921 \end{array}$
Now, perform a subtraction in columns.
$\begin{array}{l} \overset{1}{2} . \overset{10}{0} 43 \\ - 1. 921 \\ 0. 122 \end{array}$
$11.693 - 7.777$

For this task you need the following basic knowledge: Addition and subtraction of decimal numbers
$11.693 - 7.777$
Write the figures one below the other. Make sure that the decimal marks are directly underneath each other.
$\begin{array}{l} 11.693 \\ - 7.777 \end{array}$
Now, perform a subtraction in columns.
$\begin{array}{l} 1 \overset{\overset{10}{0}}{1} . \overset{16}{6} \overset{8}{9} \overset{13}{3} \\ - 7. 7 7 7 \\ 3. 9 1 6 \end{array}$

This content is licensed under
CC BY-SA 4.0 → What does that mean? serlo.org