计算:(1)-4-28-(-19)+(-24),(2)-11×2-(-30)÷(-10),(3)1-(34+712?76)×(-60),(4
计算:(1)-4-28-(-19)+(-24),(2)-11×2-(-30)÷(-10),(3)1-(34+712?76)×(-60),(4)412×[?32×(?13)...
计算:(1)-4-28-(-19)+(-24),(2)-11×2-(-30)÷(-10),(3)1-(34+712?76)×(-60),(4)412×[?32×(?13)2?0.8]÷(?514).
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(1)原式=-4-28+19-24-------------------------------------------2
=-37-------------------------------------------4
(2)原式=-22-3-------------------------------------------2
=-25-------------------------------------------4
(3)原式=1+10-------------------------------------------2
=11-------------------------------------------4
(4)原式=4
×(-9×
-0.8)÷(-5
)--------------------------1
=
×(-
)×(-
)-------------------------------------------2
=
-------------------------------------------4
=-37-------------------------------------------4
(2)原式=-22-3-------------------------------------------2
=-25-------------------------------------------4
(3)原式=1+10-------------------------------------------2
=11-------------------------------------------4
(4)原式=4
1 |
2 |
1 |
9 |
1 |
4 |
=
9 |
2 |
9 |
5 |
4 |
21 |
=
54 |
35 |
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