计算下面各题,能简算的要简算.0.6×3.3+ 3 5 ×7.7-0.6 ...
计算下面各题,能简算的要简算.0.6×3.3+35×7.7-0.6(23+57-12)÷142910×[59(12-16)]827÷[(13-14)×8]....
计算下面各题,能简算的要简算.0.6×3.3+ 3 5 ×7.7-0.6 ( 2 3 + 5 7 - 1 2 ) ÷ 1 42 9 10 × [ 5 9 ( 1 2 - 1 6 )] 8 27 ÷ [( 1 3 - 1 4 )×8] .
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2014-11-16
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(1)0.6×3.3+ ×7.7-0.6, =0.6×3.3+0.6×7.7-0.6, =(3.3+7.7-1)×0.6, =10×0.6, =6;
(2)( + - )÷ , =( + - )×42, = ×42+ ×42- ×42, =28+30-21, =37;
(3) ×[ ×( - )], = × ×( - ), = ×( - ), = × , = ;
(4) ÷[( - )×8], = ÷[ ×8], = ÷ , = × , = . |
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