<span>1111-101=</span>
<span>111100-10100=</span>
<span>1101001-100011=</span>
<span>10010110-110010=</span>
<span>11000011-1000001=</span>
<span><span>101+1111=</span></span>
<span><span> 10100+111100=</span></span>
<span><span>100011+110010=</span></span>
<span><span>110010+10010110=</span></span>
<span><span>1000001+11000011=</span></span>