<span>5000:10:20+18 =43</span>
<span>1)5000:10=500</span>
<span>2)500:20=25</span>
<span>3)25+18=43</span>
<span><span>(86-29):(240:80)=19</span></span>
<span><span>1)86-29=57</span></span>
<span><span>2)240:80=3</span></span>
<span><span>3)57:3=19</span></span>
<span><span><span>70*(40-32):14=40</span></span></span>
<span><span><span>1)40-32=8</span></span></span>
<span><span><span>2)70*8=560</span></span></span>
<span><span><span>3)560:14=40</span></span></span>
<span><span><span><span>(60-360:60):2=27</span></span></span></span>
<span><span><span><span>1)360:60=6</span></span></span></span>
<span><span><span><span>2)60-6=54</span></span></span></span>
<span><span><span><span>3)54:2=27</span></span></span></span>