题目内容
2.1× = | 3.75+1 = | 0.125×32= | 62= | 0.18× = |
 - = | 1÷-÷1= | 15×（+ ）= |  × ÷×= | ÷25%× = |
解：
分析：本题根据小数、分数的加法、减法、乘法、除法的运算法则计算即可；
0.125×32可将式中32拆分为8×4计算；
15×（+）可根据乘法分配律计算；
×÷×可根据乘法交换律计算．
点评：完成本题要认真分析式中数的据，能简便计算的要简便计算．
| 2.1×=3， | 3.75+1=5， | 0.125×32=4， | 62=36， | 0.18×=0.1， |
-= ， | 1÷-÷1=2 ， | 15×（+）=8， | ×÷×= ， | ÷25%×=． |
分析：本题根据小数、分数的加法、减法、乘法、除法的运算法则计算即可；
0.125×32可将式中32拆分为8×4计算；
15×（
+）可根据乘法分配律计算；×÷×可根据乘法交换律计算．点评：完成本题要认真分析式中数的据，能简便计算的要简便计算．
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