<span /><span><span>1)
</span>857 х 308 = 263 956</span><span><span>
2)
</span>300 000 – 263 956 = 36 044</span>
<span><span>3)
</span>36 044:4 = 9011</span><span><span>
4)
</span>9 011 х 800 = 7 208 800</span><span><span>
5)
</span>166704 : 276 = 604</span><span><span>
6)
</span>4 731 075 : 675 = 7 009</span><span><span>
7)
</span>7 009 х 604 = 4 233 436</span>
<span><span>8)
</span>7 208 800 - 4 233 436 = 2 975
264</span>
84/х=6*7
84/х=42
х=84/42
х=2
_________
84/2=6*7
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!