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计算:(1)-10-(-16)+(-24)(2)-3.5÷78×(?34)(3)(16?23+
计算:(1)-10-(-16)+(-24)(2)-3.5÷78×(?34)(3)(16?23+37)×(?42)(4)?16?|?5|+2×(?12)2....
计算:(1)-10-(-16)+(-24)(2)-3.5÷78×(?34)(3)(16?23+37)×(?42)(4)?16?|?5|+2×(?12)2.
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(1)-10-(-16)+(-24)
=-10+16-24
=-18
(2)-3.5÷
×(?
)
=-
×
×(-
)
=3;
(3)(
?
+
)×(?42)
=
×(-42)-
×(-42)+
×(-42)
=-7+28-18
=3
(4)?16?|?5|+2×(?
)2.
=-1-5+
=-5
.
=-10+16-24
=-18
(2)-3.5÷
7 |
8 |
3 |
4 |
=-
7 |
2 |
8 |
7 |
3 |
4 |
=3;
(3)(
1 |
6 |
2 |
3 |
3 |
7 |
=
1 |
6 |
2 |
3 |
3 |
7 |
=-7+28-18
=3
(4)?16?|?5|+2×(?
1 |
2 |
=-1-5+
1 |
2 |
=-5
1 |
2 |
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