在横线里填上“>”、“<”或“=”.
200-5.24-24.76________200+(5.24+24.76)
(6.3+2.7)+9.5________5.9+(6.3+2.7)
23.17+3.56+45.83________23.17+45.83+3.56.
在横线里填上“>”、“<”或“=”.200-5.24-24.76________200+(5.24+24.76)(6.3+2.7)+9.5________5.9+(6
答案:2 悬赏:20 手机版
解决时间 2021-01-04 09:19
- 提问者网友:聂風
- 2021-01-04 06:27
最佳答案
- 五星知识达人网友:深街酒徒
- 2021-01-04 07:09
< > =解析分析:根据小数加减法的混合运算的方法,把算式的结果求出来,然后再根据小数大小比较的方法进行解答.解答:
(1)200-5.24-24.76,
=200-(5.24+24.76),
=200-30,
=170;
200+(5.24+24.76),
=200+30,
=230;
170<230;
所以,200-5.24-24.76<200+(5.24+24.76);(2)(6.3+2.7)+9.5,
=9+9.5,
=18.5;
5.9+(6.3+2.7),
=5.9+9,
=14.9;
18.5>14.9;
所以,(6.3+2.7)+9.5>5.9+(6.3+2.7);(3)23.17+3.56+45.83,
=23.17+45.83+3.56
=69+3.56,
=72.56;
23.17+45.83+3.56
=69+3.56,
=72.56;
所以,23.17+3.56+45.83=23.17+45.83+3.56.故
(1)200-5.24-24.76,
=200-(5.24+24.76),
=200-30,
=170;
200+(5.24+24.76),
=200+30,
=230;
170<230;
所以,200-5.24-24.76<200+(5.24+24.76);(2)(6.3+2.7)+9.5,
=9+9.5,
=18.5;
5.9+(6.3+2.7),
=5.9+9,
=14.9;
18.5>14.9;
所以,(6.3+2.7)+9.5>5.9+(6.3+2.7);(3)23.17+3.56+45.83,
=23.17+45.83+3.56
=69+3.56,
=72.56;
23.17+45.83+3.56
=69+3.56,
=72.56;
所以,23.17+3.56+45.83=23.17+45.83+3.56.故
全部回答
- 1楼网友:西风乍起
- 2021-01-04 08:12
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