1.1 Övningar

Beräkna (utan hjälp av räknedosa) $\textrm{a) }$ $3-7-4+6-5$ $\textrm{b) }$ $3-(7-4)+(6-5)$ $\textrm{c) }$<

          <td class="ntext">$3-(7-(4+6)-5)$</td>
        </tr>
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          <td class="ntext">$\textrm{d) }$</td>
          <td class="ntext">$3-(7-(4+6))-5$</td>
          <td class="ntext">$\textrm{e) }$</td>
          <td class="ntext">$(3-(7-4))(6-5)$</td>
          <td class="ntext">$\textrm{f) }$</td>
          <td class="ntext">$3-(((7-4)+6)-5)$</td>
        </tr>
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          <td class="ntext">$\textrm{g) }$</td>
          <td class="ntext">$3\cdot(-7)-4\cdot(6-5)$</td>
          <td class="ntext">$\textrm{h) }$</td>
        <td class="ntext">$3\cdot(-7)-(4+6)/(-5)$</td>
        </tr>
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      </table>