Exercice 20 :
↓ Enoncé :
Calculer :
- \( = 18 - 6 \div 3 \)
- \( = (18 - 6) \div 3 \)
- \( = 4 \times (5 + 8) \)
- \( = (24 \div 6) + (16 \div 4) \)
↓ Solution :
- \(
\begin{align}
18 - 6 \div 3 &= 18 - 2 \\
&= 16
\end{align}
\)
- \(
\begin{align}
(18 - 6) \div 3 &= 12 \div 3 \\
&= 4
\end{align}
\)
- \(
\begin{align}
4 \times (5 + 8) &= 4 \times 13 \\
&= 52
\end{align}
\)
- \(
\begin{align}
(24 \div 6) + (16 \div 4) &= 4 + 4 \\
&= 8
\end{align}
\)