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第1个回答 推荐于2021-02-15
[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-3x+2y-5x-7y本回答被提问者采纳
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-3x+2y-5x-7y本回答被提问者采纳
第2个回答 2008-10-01
1.判断题
(1)3-4×(-3.5)=0
(2)如果a与-2互为倒数,那么a2-2a=1.
(3)-( )2=-
(4)-(-1)3×(-0.2)3=0.008.
(5)0.25×1 +0.75÷ = .
(6)(-4)+(-7)-(-21)=-4-7+21.
(7)|-1.3|+0÷(5.7×|- |+ )=1.3.
(8)(a-2)2+|b-4|=0,则a=2,b=4.
2.填空题
(1)-32×5-(-4)2×2=_________.
(2)(-1)4-5×(- )3=________.
(3)-(-3)2-33=_________.
(4)-32÷(-3)2+(-2)4÷(-24)=_________.
(5)|(-1)7-(-2)3|=__________.
(6)若|a-3|+|b+ |=0,则ba=__________.
(7)用“>”或“<”号连接下列各组数.
①-32____________ (-2)2; ②- ____________-|- |;
③(-1)53____________(-2)37;
(1)3-4×(-3.5)=0
(2)如果a与-2互为倒数,那么a2-2a=1.
(3)-( )2=-
(4)-(-1)3×(-0.2)3=0.008.
(5)0.25×1 +0.75÷ = .
(6)(-4)+(-7)-(-21)=-4-7+21.
(7)|-1.3|+0÷(5.7×|- |+ )=1.3.
(8)(a-2)2+|b-4|=0,则a=2,b=4.
2.填空题
(1)-32×5-(-4)2×2=_________.
(2)(-1)4-5×(- )3=________.
(3)-(-3)2-33=_________.
(4)-32÷(-3)2+(-2)4÷(-24)=_________.
(5)|(-1)7-(-2)3|=__________.
(6)若|a-3|+|b+ |=0,则ba=__________.
(7)用“>”或“<”号连接下列各组数.
①-32____________ (-2)2; ②- ____________-|- |;
③(-1)53____________(-2)37;
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