计算:(1)-8+10+2+(-1)(2)(14?16+19)×(?36)(3)-5×(-6)+3×(-8)-(-4)×(-7)(4)-32×
计算:(1)-8+10+2+(-1)(2)(14?16+19)×(?36)(3)-5×(-6)+3×(-8)-(-4)×(-7)(4)-32×(-2)+42÷(-2)3(...
计算:(1)-8+10+2+(-1)(2)(14?16+19)×(?36)(3)-5×(-6)+3×(-8)-(-4)×(-7)(4)-32×(-2)+42÷(-2)3(5)-12+|-8|÷(3-5)-(-2)3.
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(1)原式=-8+10+2-1
=〔(-8)+(-1)(10+2)〕
=(-9)+12
=3;
(2)原式=
×(-36)-
×(-36)+
×(-36)
=(-9)+6+(-4)
=〔(-9)+(-4)〕+6
=(-13)+6
=-7;
(3)原式=30+(-24)-(+28)
=30-24-28
=-22;
(4)原式=-9×(-2)+16÷(-8)
=18+(-2)
=18-2
=16;
(5)原式=-1+8÷(-2)-(-8)
=-1+(-4)-(-8)
=-1-4+8
=3.
=〔(-8)+(-1)(10+2)〕
=(-9)+12
=3;
(2)原式=
1 |
4 |
1 |
6 |
1 |
9 |
=(-9)+6+(-4)
=〔(-9)+(-4)〕+6
=(-13)+6
=-7;
(3)原式=30+(-24)-(+28)
=30-24-28
=-22;
(4)原式=-9×(-2)+16÷(-8)
=18+(-2)
=18-2
=16;
(5)原式=-1+8÷(-2)-(-8)
=-1+(-4)-(-8)
=-1-4+8
=3.
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