相关试题
计算：
①
+
﹣
= ②3.2﹣0.85﹣1
= ③3.2×
﹣
÷2= ④1.725×4×0.5=
⑤（
+
）÷= ⑥1.8×0.72+1.28×1.8= ⑦2÷（
﹣
）= ⑧57.6÷[（1.25+25%）×0.32]=．
直接写得数．
3.86+2.4= 7.6﹣0.56= 4.5×102= 3.25+2.3+1.75=
361+199= 7÷0.4= 4
= 
=
2.5×32= 
= 0.1÷0.01= 3.47﹣（2.5+0.47）=
4768÷791≈ 12÷
= 1÷
=
= 5.58÷0.78≈
4.98×7.11≈ 
= 
=
用你最喜欢的方法计算．
1.25×0.25×32
（0.25+
）÷（
﹣
）
×0.25+
×
[（8.7﹣7.5）÷0.2]×0.15
3.75×58.3÷58.3×6.54÷3.75÷65.4
56×（
+
﹣
）
简算下列各题
548+468+52 9.14﹣1.34﹣4.57 77+2.7+2.3+23
3200÷4÷25 125×32×25 2009×95+5×2009．
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