直接写得数. × = | ÷ = | 1- = |
| 0.13= | ( + )×8= | - = |
+ = | × = | 0÷ = |
÷3× ÷3= |
解: × = , | ÷ =2, | 1- = , |
| 0.13=0.001, | ( + )×8= , | - = , |
+ = , | × = , | 0÷ =0, |
÷3× ÷3= . |
,2,
,0.001,
,
,
,
,0,
.分析:0.13表示3个0.1相乘,即0.1×0.1×0.1;(
+
)×8先算括号里面的加法,再算括号外的乘法;
÷3×
÷3把除法变成乘法后再运用乘法结合律简算;其它题目按照运算法则直接求解.点评:本题考查了基本的运算,要注意立方表示的含义,结果是分数的要化成最简分数.
×
=
=
=
-
×
=