用“＞”“＜”“=”填空．
8.5×1.6 8.5×1.5
1.05×0.8 1×0.8+0.5×0.8
（5.6+4.4）×1.78 5.6×1.79+4.4×1.78
0.738×999+0.738 0.738×1000．
用“＞”“＜”“=”填空．
8.5×1.6 8.5×1.5
1.05×0.8 1×0.8+0.5×0.8
（5.6+4.4）×1.78 5.6×1.79+4.4×1.78
0.738×999+0.738 0.738×1000．
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