题目内容
| 1 |
| 3 |
| 2 |
| 13 |
| 6 |
| 7 |
| 1327 |
| 336 |
| 1327 |
| 336 |
分析:把小数化为分数,原式变为
+(
×
+1+
)×
,在计算中,可以运用乘法分配律简算.
| 1 |
| 3 |
| 7 |
| 8 |
| 2 |
| 13 |
| 13 |
| 16 |
| 13 |
| 7 |
解答:解:
+(0.875×
+1+6.5÷8)×1
,
=
+(
×
+1+
)×
,
=
+
×
×
+
×
,
=
+
+
,
=
+
+
,
=
.
| 1 |
| 3 |
| 2 |
| 13 |
| 6 |
| 7 |
=
| 1 |
| 3 |
| 7 |
| 8 |
| 2 |
| 13 |
| 13 |
| 16 |
| 13 |
| 7 |
=
| 1 |
| 3 |
| 7 |
| 8 |
| 2 |
| 13 |
| 13 |
| 7 |
| 29 |
| 16 |
| 13 |
| 7 |
=
| 1 |
| 3 |
| 1 |
| 4 |
| 377 |
| 112 |
=
| 112 |
| 336 |
| 84 |
| 336 |
| 1131 |
| 336 |
=
| 1327 |
| 336 |
点评:此题计算量较大,需要仔细认真,最后注意通分.
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