能简算要简算． 0.4×（2.5÷73）72
能简算要简算．0.4×（2.5÷73）725×1001733.6÷8+33.6÷878÷816212.42÷34+4.58×113-4÷33.8÷3.9+3.9÷0.1+...
能简算要简算． 0.4×（2.5÷73）725×1001733.6÷8+33.6÷878÷816212.42÷34+4.58×113-4÷33.8÷3.9+3.9÷0.1+0.1÷3.9．
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（1）0.4×（2.5÷73）
=0.4×2.5÷73
=1÷73
=
（2）
×100
=
×100+
×
=28+0.04
=28.04
（3）33.6÷8+33.6÷
=33.6×
+33.6×
=33.6×(
+
)
=33.6×1
=33.6
（4）8÷8
=8×
=
（5）2.42÷
+4.58×1
-4÷3
=2.42×
+4.58×
-
=（2.42+4.58-1）×
=6×
=8
（6）3.8÷3.9+3.9÷0.1+0.1÷3.9
=
+39+
=
+
+39
=1+39
=40
=0.4×2.5÷73
=1÷73
=
| 1 |
| 73 |
（2）
| 7 |
| 25 |
| 1 |
| 7 |
=
| 7 |
| 25 |
| 7 |
| 25 |
| 1 |
| 7 |
=28+0.04
=28.04
（3）33.6÷8+33.6÷
| 8 |
| 7 |
=33.6×
| 1 |
| 8 |
| 7 |
| 8 |
=33.6×(
| 1 |
| 8 |
| 7 |
| 8 |
=33.6×1
=33.6
（4）8÷8
| 16 |
| 21 |
=8×
| 21 |
| 184 |
=
| 21 |
| 23 |
（5）2.42÷
| 3 |
| 4 |
| 1 |
| 3 |
=2.42×
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
=（2.42+4.58-1）×
| 4 |
| 3 |
=6×
| 4 |
| 3 |
=8
（6）3.8÷3.9+3.9÷0.1+0.1÷3.9
=
| 38 |
| 39 |
| 1 |
| 39 |
=
| 38 |
| 39 |
| 1 |
| 39 |
=1+39
=40
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