
计算:(1)(14+512?56)×(?60)(2)(?5)3×(?35)+32÷(?22)×(?114)
计算:(1)(14+512?56)×(?60)(2)(?5)3×(?35)+32÷(?22)×(?114)....
计算:(1)(14+512?56)×(?60)(2)(?5)3×(?35)+32÷(?22)×(?114).
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(1)(
+
-
)×(-60)
=
×(-60)+
×(-60)-
×(-60)
=-15-25+50
=10;
(2)(-5)3×(-
)+32÷(-22)×(-1
)
=(-125)×(-
)+32÷4×(-
)
=75-10
=65.
1 |
4 |
5 |
12 |
5 |
6 |
=
1 |
4 |
5 |
12 |
5 |
6 |
=-15-25+50
=10;
(2)(-5)3×(-
3 |
5 |
1 |
4 |
=(-125)×(-
3 |
5 |
5 |
4 |
=75-10
=65.
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