1) 12617:31=407
2)208*43=8944
3)407+8944=9351
4)10351-9351=1000
1.<span>12617:31=407</span>
<span>2. <span>208*43=8944</span></span>
<span><span>3. 407+8944=9351</span></span>
<span><span>4. <span>10351-9351=1000</span></span></span>