估算403-198的结果是______,计算结果是______.
403-198,
≈400-200,
=200;
403-198=205;
故答案为:200,205.
根据要求写句子。
1. I like watching TV at home.(改为否定句)
____________________________________________
2. She often goes to the park on Sundays.(改为复数句子)
3. My grandfather usually reads magazines at the weekends.(对画线部分提问)
4. My sister often catches insects in the park.(用now改写句子)
5. There are some bees in the bottle.(改为单数句子)
_____________________________________________
设计路中心线是道路路基()的对称线。
A、路面
B、路边
C、侧平石
D、街沟