360......................................
(98140 : 70 - 0) * 607 - (415:415) * (30958 <span>+ 0) </span><span>+ 250192 : 823
</span><span>= 820 360
1) 98140 : 70 </span><span>= 1402
2) 1402 - 0 </span><span>= 1402
3) 1402 * 607 </span><span>= </span><span>851 014
4) 415 : 415 </span><span>= 1
5) </span>30958 <span>+ 0 </span><span>= 30958
</span>6)<span> 250192 : 823 </span><span>= 304
7)</span> 1*30958 <span>= 30958
8) </span><span>851 014 - </span><span>30958 </span><span>= 820 056
9) </span><span>304 </span><span>+</span> <span>820 056 </span>=
3×(14+8):2=33
1) 14+8 = 22
2)3×22=66
3) 66:2= 33
7×(12+9)=147
1)12+9=21
2)7×21=147
<span>Так как 13×15=195 то 4×195=? Тогда решаем и получаем 780</span>