54÷6=9 (p) blaknot
54-9=45 (p) doroźe kniga cem blaknot
Смотри фото..............
Оно не делится но остатаок 2
5×5×5-5=70_________
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<span>а)-2/7-(-3)=-2/7 + 3 = 3 - 2/7 = 2 2/7;
</span><span>б)148-154= - 6;
</span>в)9 5/6 - 3 2/9= 9 15/18 - 3 6/18 = 6 9/18 = 6 1/2;
г) 7/12 -(-8/15)= 35/60 + 32/60 = 67/60 = 1 7/60;
д)-54.7-42.7= - 97,4
<span>у)-3 5/6 - 10 3/8= - 3 20/24 - 10 9/24 = -13 29/24 = 14 5/24.</span>