Exercises: Subtraction - learn with Serlo!

Compute the following differences.

$25 - 8$

Für diese Aufgabe benötigst Du folgendes Grundwissen: Subtraction
$25 - 8$
Subtract from right to left. Subtract the ones first. Since $8$ is greater than $5$ , you need to calculate $15 - 8 = 7$ and "memorize" a $1$ in the tens.
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;\;2\;5\\\underline{-\;\;~_1\;8}\\\;\;\;\;\;\;\;\;7\end{array}$
Now subtract the tens: $2 - 1 = 1$ .
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;\;2\;5\\\underline{-\;\;~_1\;8}\\\;\;\;\;\;1\;7\end{array}$
The result is therefore $17$ .
Do you have a question?
Write it here 👇
$85 - 62$

Für diese Aufgabe benötigst Du folgendes Grundwissen: Subtraction
$85 - 62$
Subtract from right to left. First, subtract the ones: $5 - 2 = 3$ .
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;\;8\;5\\\underline{-\;\;6\;2}\\\;\;\;\;\;\;\;\;3\end{array}$
Now subtract the tens: $8 - 6 = 2$ .
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;\;8\;5\\\underline{-\;\;6\;2}\\\;\;\;\;\;2\;3\end{array}$
The result is therefore $23$ .
Do you have a question?
Write it here 👇
$64 - 38$

Für diese Aufgabe benötigst Du folgendes Grundwissen: Subtraction
$64 - 38$
Subtract from right to left. First, subtract the ones. Since $8$ is greater than $4$ , you need to calculate $14 - 8 = 6$ and "memorize" a $1$ in the tens.
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;\;\;6\;\;4\\\underline{-\;\;\;3_1\;8}\\\;\;\;\;\;\;\;\;\;\;6\end{array}$
Now subtract the tens: $6 - 3 - 1 = 2$ .
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;\;\;6\;\;4\\\underline{-\;\;\;3_1\;8}\\\;\;\;\;\;\;2\;\;6\end{array}$
The result is therefore $26$ .
Do you have a question?
Write it here 👇
$333 - 189$

Für diese Aufgabe benötigst Du folgendes Grundwissen: Subtraction
$333 - 189$
Subtract from right to left. First, subtract the ones. Since $9$ is greater than $3$ , you need to calculate $13 - 9 = 4$ and "memorize" a $1$ in the tens.
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;3\;\;3\;\;\;3\\\underline{-\;1\;\;8_1\;\;9}\\\;\;\;\;\;\;\;\;\;\;\; \;4\end{array}$
Then, subtract the tens. Since $9$ is greater than $3$ , you need to calculate $13 - 9 = 4$ and "memorize" a $1$ in the hundreds.
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;3\;\;\;3\;\;\;\;3\\\underline{-\;1_1\;\;8_1\;\;9}\\\;\;\;\;\;\;\;\;\;\;4\;\;\;4\end{array}$
Now subtract the hundreds: $3 - 1 - 1 = 1$ .
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;3\;\;\;3\;\;\;\;3\\\underline{-\;1_1\;\;8_1\;\;9}\\\;\;\;\;1\;\;\;4\;\;\;4\end{array}$
The result is therefore $144$ .
Do you have a question?
Write it here 👇
$587 - 292$

Für diese Aufgabe benötigst Du folgendes Grundwissen: Subtraction
$587 - 292$
Subtract from right to left. First, subtract the ones: $7 - 2 = 5$ .
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;5\;\;\;8\;\;\;7\\\underline{-\;2\;\;\;9\;\;\;2}\\\;\;\;\;\;\;\;\;\;\;\;\;\;\;5\end{array}$
Then, subtract the tens. Since $9$ is greater than $8$ , you need to calculate $18 - 9 = 9$ and "memorize" a $1$ in the hundreds.
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;5\;\;\;\;8\;\;\;\;7\\\underline{-\;2_1\;\;\;9\;\;\;2}\\\;\;\;\;\;\;\;\;\;\;\;9\;\;\;5\end{array}$
Now subtract the hundreds: $5 - 2 - 1 = 2$ .
$\def\arraystretch{1.25} \begin{array}{l}\;\;\;\;5\;\;\;\;8\;\;\;\;7\\\underline{-\;2_1\;\;\;9\;\;\;2}\\\;\;\;\;2\;\;\;\;9\;\;\;5\end{array}$
The result is therefore $295$ .
Do you have a question?
Write it here 👇

This content is licensed under
CC BY-SA 4.0 → Info

Do you have a question?

Do you have a question?

Do you have a question?

Do you have a question?

Do you have a question?