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138+98= 1.30.01= 12.53.2= 8.2101-2.4=1111554+-+=- += 1.254= 1435= 11.3-3.6= 9232379
2? ??????????12?? 0.8+++ 2.05-0.812.74.5
10.6252005+2005-2005
3?????x?8?? 7X-25=150 X: =5?
??????24?? 3513X1=30% 0.8(X+)=3.6 2144915593845255?-?= 931566
1?1020????=?????6.08?=? ?????? 13850??=? ??=? ?????
2? 14? ?=
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A? 0 B ?1C ?1.5
2 132317
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A ?8? B ?92? C ?108?
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