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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