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能简便的用简便方法计算. 329×108-15276÷38 30.4-1.05×(10.8-9.08) 4÷45?45÷4+4×45 ...
能简便的用简便方法计算.329×108-15276÷3830.4-1.05×(10.8-9.08)4÷45?45÷4+4×4518.09-4.37-1.09-1.6332...
能简便的用简便方法计算. 329×108-15276÷38 30.4-1.05×(10.8-9.08) 4÷45?45÷4+4×45 18.09-4.37-1.09-1.63 32×[1÷(2110?2.05)+25] 4.8×9.5+445×1.5-4.8.
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(1)329×108-15276÷38
=35532-402
=35130;
(2)30.4-1.05×(10.8-9.08)
=30.4-1.05×1.72
=30.4-1.806
=28.594;
(3)4÷
?
÷4+4×
=5-
+
=5+(
-
)
=5+3
=8;
(4)18.09-4.37-1.09-1.63
=(18.09-1.09)-(4.37+1.63)
=17-6
=11;
(5)
×[1÷(
?2.05)+
]
=
×[1÷0.05+0.4]
=
×[20+0.4]
=
×20.4
=30.6;
(6)4.8×9.5+4
×1.5-4.8
=4.8×(9.5+1.5-1)
=4.8×10
=48.
=35532-402
=35130;
(2)30.4-1.05×(10.8-9.08)
=30.4-1.05×1.72
=30.4-1.806
=28.594;
(3)4÷
4 |
5 |
4 |
5 |
4 |
5 |
=5-
1 |
5 |
16 |
5 |
=5+(
16 |
5 |
1 |
5 |
=5+3
=8;
(4)18.09-4.37-1.09-1.63
=(18.09-1.09)-(4.37+1.63)
=17-6
=11;
(5)
3 |
2 |
21 |
10 |
2 |
5 |
=
3 |
2 |
=
3 |
2 |
=
3 |
2 |
=30.6;
(6)4.8×9.5+4
4 |
5 |
=4.8×(9.5+1.5-1)
=4.8×10
=48.
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