计算:(1)-2-3-5(2)(?2)÷13×(?3)(3)(23?112?415)×(?60)(4)-14+8-23÷(-4)×(-7+5)(5)10
计算:(1)-2-3-5(2)(?2)÷13×(?3)(3)(23?112?415)×(?60)(4)-14+8-23÷(-4)×(-7+5)(5)100-(-3)÷(3...
计算:(1)-2-3-5(2)(?2)÷13×(?3)(3)(23?112?415)×(?60)(4)-14+8-23÷(-4)×(-7+5)(5)100-(-3)÷(34)(6)-11-2×(-33)+(-22)(7)-32÷[-32-(-2)3].
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(1)-2-3-5
=-(2+3+5)
=-10;
(2)(?2)÷
×(?3)
=-6×(-3)
=18;
(3)(
?
?
)×(?60)
=-
×60+
×60+
×60
=-40+5+16
=-19;
(4)-14+8-23÷(-4)×(-7+5)
=-1+8-8÷(-4)×(-2)
=-1+8-4
=3;
(5)100-(-3)÷(
)
=100+4
=104;
(6)-11-2×(-33)+(-22)
=-11-66-22
=-99;
(7)-32÷[-32-(-2)3]
=-32÷[-9+8]
=-32÷[-1]
=32.
=-(2+3+5)
=-10;
(2)(?2)÷
1 |
3 |
=-6×(-3)
=18;
(3)(
2 |
3 |
1 |
12 |
4 |
15 |
=-
2 |
3 |
1 |
12 |
4 |
15 |
=-40+5+16
=-19;
(4)-14+8-23÷(-4)×(-7+5)
=-1+8-8÷(-4)×(-2)
=-1+8-4
=3;
(5)100-(-3)÷(
3 |
4 |
=100+4
=104;
(6)-11-2×(-33)+(-22)
=-11-66-22
=-99;
(7)-32÷[-32-(-2)3]
=-32÷[-9+8]
=-32÷[-1]
=32.
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