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,

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-.

,

, , = = = * = , , , , ,

= 16

=2*16 =32 =2( +) =2(32+16) =2*48 =96 Ans: 96 , =80 =60 =80*60 =4800 4 =80-2*4 =80-8 =72 =60-2*4 =60-8 =52 =72*52 =3744 =4800-3744 =1056Ans: 1056 80 60 4 ?

, =

= 5 = = = = = , = + 500 , ,, , , , , = ; =400 Ans: 400

5 500 ,

40 30 ,

160 6 ,

= =

180 .. 54 ..