题目内容
3.6×4.2○2.4×6.3的○中应是
- A.＞
- B.＜
- C.=
C
分析：分别求出圆圈两的结果，再进行比较．据此解答．
解答：3.6×4.2=15.12，2.4×3.6=15.12，所以3.6×4.2=2.4×6.3．
故选：C．
点评：本题的关键是求出圆圈两边的积，再进行比较大小．
分析：分别求出圆圈两的结果，再进行比较．据此解答．
解答：3.6×4.2=15.12，2.4×3.6=15.12，所以3.6×4.2=2.4×6.3．
故选：C．
点评：本题的关键是求出圆圈两边的积，再进行比较大小．
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相关题目
在○中，填上＋、－、×、÷，使得下面算式的答案分别是
0，1，2，……，9．|
4 ○4○4×4=0 |
(4 ＋4)○(4○4)=1 |
|
4 ○4＋4○4=2 |
(4 ○4○4)÷4=3 |
|
4 ○(4○4)×4=4 |
(4 ○4＋4)○4=5 |
|
(4 ○4)○4＋4=6 |
4 ○4－4○4=7 |
|
(4 ○4)○4÷4=8 |
4 ○4○4＋4=9 |
使用＋、－、×、÷和括号，你还能列出其他的算式吗？
|
4 4 4 4=0 |
4 4 4 4=5 |
|
4 4 4 4=1 |
4 4 4 4=6 |
|
4 4 4 4=2 |
4 4 4 4=7 |
|
4 4 4 4=3 |
4 4 4 4=8 |
|
4 4 4 4=4 |
4 4 4 4=9 |
| 180÷60= | 12×25= | 0÷90= |
| 4×5÷4×5= | 0.25×4+4= | 131+218+269+182= |
| 25×6×4= | 420÷35= | 36×5×4= |
| 120÷5÷3= | 198-75-25= | 120-20÷5= |
| 59亿-58亿= | （1.3+3.5）÷0.6= | 75÷2.5= |
| 0.45÷1.25÷8= | 2.5×7.6×4= | 97.6÷0.02= |
| 8.8-（0.25+0.4）= | 0.25+87+0.75= | 0.8-0.35×2= |
| 0.1÷0.01×0.1= | 9.9+9.9×99= | 2.7×3.6+6.4×2.7= |
| 720÷8÷9= | 2.9+5.7+2.1= | 2-0.16-0.64= |
| 16.7+84.5-16.7= | 6.8-（3.8+2.9）= | 9×1.3+9×6.7= |
| 5.5-5.25+5.2= | 0.8×25-10= | 42.8×25×4= |
| 7.2+2.8= | 0.9÷0.01= | 3.5+7.6= |
| 3×0.2×0.5= | 0.96÷0.3= | 1.5×0.4= |
| 7÷0.25= | 2.5×0.7×0.8= | 8-2.5= |
| 16÷1.6= | 5.6×1.01= | 8×（2.5+0.25）= |
| 0.36+0.64= | 64.32÷16= | 72.8÷0.8= |
| 8.4×0.2+1.6×0.2= | 8.4÷4.2= | 0.05×0.8= |
| 2.56-0.37= | 1.23×3= | 25×0.8×0.5= |
| 12×2.5= | 3.2÷1.6= | 3.5+3.5×3= |
| 19.6÷2= | 8.8÷2.2= | 3.9+2.03= |
| 7.2×0.3+2.8×0.3= | 13.8+9.9= | 2.4×2.5= |
| 0.75×4= | （1.5+0.25）×4= | 4.2÷0.1= |
| 4.2÷3.5= | 2.14-0.9= | 27+456+73= |
| 12÷0.3= | 2.87÷0.7= | 13÷4= |
| 24÷4+56÷4= | 2.1×0.3÷2.1= | 2.3-0÷8.1= |
| 1.37-1.37÷1.37= | 4.4÷（5×0.2）= | 7×1.3= |
| 0.96÷0.06= | 0.36×0.3= | 0.35÷0.7= |
| 13.65÷13= | 4×0.8×0.25×1.25= | 13+0.7÷0.7= |
| 7.05×23.7+7.05×76.3= | 0.125×3.2×2.5= | （12+23.1÷0.75）×0.4-5.12= |
| 728+199= | 637-201= | 16×25= |
| 1.6×[（12-7.2）÷（0.84÷2.1）]= |