计算，能简算的要简算．
1.8×5.46+1.8×4.54 16.38÷0.36﹣4.8 0.32×0.25×12.5
0.85+0.2×1.35 2.8÷3.5×4 2.64+8.67+1.33﹣1.64．
计算，能简算的要简算．
1.8×5.46+1.8×4.54 16.38÷0.36﹣4.8 0.32×0.25×12.5
0.85+0.2×1.35 2.8÷3.5×4 2.64+8.67+1.33﹣1.64．
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