递等式计算,能简算的要简算.①254×99②13.6-(2.6+0.25÷25%)③1200÷〔56×(37-3
递等式计算,能简算的要简算.①254×99②13.6-(2.6+0.25÷25%)③1200÷〔56×(37-38)〕④(613×1.7+713×1.7)÷710⑤137...
递等式计算,能简算的要简算.①254×99②13.6-(2.6+0.25÷25%)③1200÷〔56×(37-38)〕④(613×1.7+713×1.7)÷710⑤1375+450÷15×25.
展开
1个回答
展开全部
①254×99,
=254×(100-1),
=25400-254,
=25146,
②13.6-(2.6+0.25÷25%),
=13.6-(2.6+1),
=13.6-3.6,
=10;
③1200÷[56×(
-
)],
=1200÷[56×
-56×
],
=1200÷[24-21],
=1200÷3,
=400;
④(
×1.7+
×1.7)÷
,
=1.7×(
+
)÷
,
=1.7×1×
,
=
,
=2
;
⑤1375+450÷15×25,
=1375+30×25,
=1375+750,
=2125.
=254×(100-1),
=25400-254,
=25146,
②13.6-(2.6+0.25÷25%),
=13.6-(2.6+1),
=13.6-3.6,
=10;
③1200÷[56×(
3 |
7 |
3 |
8 |
=1200÷[56×
3 |
7 |
3 |
8 |
=1200÷[24-21],
=1200÷3,
=400;
④(
6 |
13 |
7 |
13 |
7 |
10 |
=1.7×(
6 |
13 |
7 |
13 |
7 |
10 |
=1.7×1×
10 |
7 |
=
17 |
7 |
=2
3 |
7 |
⑤1375+450÷15×25,
=1375+30×25,
=1375+750,
=2125.
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询