| 1÷0.01= | 100×0.4%= | ÷ ÷6= | 12÷( + )= |
÷10%= | 8-8÷9= | 6- + = | ( + - )×30= |
× = | 1÷0.1×1÷0.1= | ÷ ×6= | - × = |
| 1÷0.01=100, | 100×0.4%=0.4, | ÷ ÷6= , | 12÷( + )= , |
÷10%=2, | 8-8÷9=7 , | 6- + =6 , | ( + - )×30=11, |
× = , | 1÷0.1×1÷0.1=100, | ÷ ×6=4, | - × = . |
分析:
÷
÷6,1÷0.1×1÷0.1,
÷
×6按照从左到右的顺序计算;12÷(
+
)先算小括号里面的加法,再算括号外的除法;8-8÷9先算除法,再算减法;
(
+
-
)×30,运用乘法分配律简算;
-
×
先算乘法,再算减法;其它题目根据运算法则直接求解.
点评:本题考查了简单的计算,认真分析式中数据,根据运算法则和运算定律快速准确得出答案.
+
=
=
,
,
,
,
.