计算(1)4?(?3)×(?1)?8×(?12)3×|?2?3| (2)(?5)3×(?35)?32÷(?2)2×(+54)(3)13+(+7)-(-20)-
计算(1)4?(?3)×(?1)?8×(?12)3×|?2?3|(2)(?5)3×(?35)?32÷(?2)2×(+54)(3)13+(+7)-(-20)-(-40)-(...
计算(1)4?(?3)×(?1)?8×(?12)3×|?2?3| (2)(?5)3×(?35)?32÷(?2)2×(+54)(3)13+(+7)-(-20)-(-40)-(+6)(4)(-7)-(+5)+(+3)-(-9)(5)18?6÷(?2)×(?13)(6)(?4)2×[?34+(?58)].
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(1)4?(?3)×(?1)?8×(?
)3×|?2?3|
=4-3+8×
×5
=4-3+5
=6;
(2)(?5)3×(?
)?32÷(?2)2×(+
)
=-125×(-
)-32÷4×
=75-10
=65;
(3)13+(+7)-(-20)-(-40)-(+6)
=13+7+20+40-6
=74;
(4)(-7)-(+5)+(+3)-(-9)
=-7-5+3+9
=-12+12
=0;
(5)18?6÷(?2)×(?
)
=18+3×(-
)
=18-1
=17;
(6)(?4)2×[?
+(?
)]
=16×(-
)
=-22.
1 |
2 |
=4-3+8×
1 |
8 |
=4-3+5
=6;
(2)(?5)3×(?
3 |
5 |
5 |
4 |
=-125×(-
3 |
5 |
5 |
4 |
=75-10
=65;
(3)13+(+7)-(-20)-(-40)-(+6)
=13+7+20+40-6
=74;
(4)(-7)-(+5)+(+3)-(-9)
=-7-5+3+9
=-12+12
=0;
(5)18?6÷(?2)×(?
1 |
3 |
=18+3×(-
1 |
3 |
=18-1
=17;
(6)(?4)2×[?
3 |
4 |
5 |
8 |
=16×(-
11 |
8 |
=-22.
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