1) 456:8=57 2) 142*2=284 3)744-57=687 4) 687+284=971
V 48 - 2 V 3 * ( 2 - 5 V 12) = 2 V 12 - 2V 3 * V 4 - 2 V 3 * 5 V 12 =
= 2 V 12 - 2 V 12 - 10 V 36 = ( - 10 )* 6 = ( - 60)
ответ: минус 60
<span>1 2/9-1 1/3+1 5/18=
1)1 2/9-1 1/3=11/9-4/3=11/9-12/9=-1/9
2)-1/9+1 5/18=-2/18+23/18=21/18=1 3/18=1 1/6
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