计算下面各题，能简算的要简算．
1.29+3.7+2.71+6.3 3.75÷[0.3×（1.34﹣0.84）] 7.2×7.2+7.2×2.8
0.25×0.8×0.125×4 25×10.8×0.04 15.32﹣1.8×5﹣3.46．
计算下面各题，能简算的要简算．
1.29+3.7+2.71+6.3 3.75÷[0.3×（1.34﹣0.84）] 7.2×7.2+7.2×2.8
0.25×0.8×0.125×4 25×10.8×0.04 15.32﹣1.8×5﹣3.46．
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