<span>1)49 и 14 - <span>98</span></span>
<span> 2)31 и 103 - 3193</span>
<span> 3)40 и 2180 - 4360</span>
<span> 4)25,125 и 6250 - 6250</span>
27-12=15 Зайсан көлі 27÷2=13,5