(3/2+4/5)*3/5-1.18:8*0.125*2/13+7/9
15+8/10*3/5-0.0184375*2/13+7/9
23/10*3/5-184375/10000000*2/13+7/9
69/50-184375/5000000*1/13+7/9
69/50-59/1600*1/13+7/9
69/50-59/20800+7/9
258336-531+145600/187200
403405/187200
80681/37440
Ответ: 80681/37440
57/8*4/3-15,05+7,45=19/2-15,05+7,45=9,5-15,05+7,45=1,9
14:30- 13:20= 50(мин) - Элли пробыла у Гудвина.
Ответ: 50 минут.
А) 56/14= 4 84/(30-18) = 7
Б) 48/12=4 (59+19)/13= 6
В) 72/36=2 100/(20/5)=25
УЧИ ДЕЛЕНИЕ!
<span>| 3 | + | 7 | и | 7 + 3 | </span>
<span> 3+7 и 10 </span>
<span> 10 =10 </span>
<span>| 3 | + | 7 | = | 7 + 3 | </span>
<span><span>|-1 | + | 10 | и | -1 +10 |</span></span>
<span><span>1 +10 и 9 </span></span>
<span><span>11 > 9 </span></span>
<span><span>|-1 | + | 10 | > | -1 +10 |</span></span>