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有下列算式:①(0.5) 0 =1;②0 0 =1;③(-1) 0 =-1;④(-a) 7 ÷(-a) 3 =a 4 ;
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相关问题
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已知1÷A= 0. • 0 • 9 ;2÷A= 0. • 1 • 8 ;3÷A= 0. • 2 • 7 ;4÷A= 0.
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下列算式中,得数最大的算式是( ) A.0.3×1.2 B.0.3÷1.2 C.1.2÷0.3 D.1.2×0.3
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a1=(1,-1,2,4),a2=(0,3,1,2),a3=(3,0,7,14),a4=(1,-1,2,0),a5=(2
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0.02×0.1= 5.06x-4.07x= 12-7.8= a+0.4a= 12÷0.3= 4.6x+2.7x= 1.
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2.5×5= 10+0.4= 2.5×0.4= 7.1×0.2= 1÷0.1= 3.6÷0.4= 0.2×3.1= 4.
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2.5×5= 10+0.4= 2.5×0.4= 7.1×0.2= 1÷0.1= 3.6÷0.4= 0.2×3.1= 4.
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有四个算式:①a2÷a3=a-1=[1/a];②m10÷m10=0;③([1/5])-3=[1/5]3=[1/125];
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1.8+18÷1.5-0.5×0.3 (0.62+7.638÷0.1)÷0.25
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把下列算式简便计算,0.9-(0.15+0.35÷5/7)4/9x[3/4-(7/16-1/4)]5/4x3/5÷3/2
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1.4×0.5= 7.5÷1.5= 0.48÷1.6= 0.51÷17= 1.2×0.4= 1.8-0.93= 0.67