5. Ecris une multiplication pour chacune deces additions répétées. a) (-1)+(-1)+(-1) b) (-2)+(-2)+(-2)+(-2)+(-2) c) (+11)+(+11)+(+11)+(+11)

## Step 1: Analyze the repeated addition in (a)<br />### We have (-1) added to itself three times. This can be represented as a multiplication of (-1) by 3.<br />## Step 2: Write the multiplication for (a)<br />### $3 \times (-1)$<br />## Step 3: Analyze the repeated addition in (b)<br />### We have (-2) added to itself five times. This can be represented as a multiplication of (-2) by 5.<br />## Step 4: Write the multiplication for (b)<br />### $5 \times (-2)$<br />## Step 5: Analyze the repeated addition in (c)<br />### We have (+11) added to itself four times. This can be represented as a multiplication of (+11) by 4.<br />## Step 6: Write the multiplication for (c)<br />### $4 \times (+11)$