若a=0.00...024(2009个0),b=0.00...05(2010个0) ①a+b= ②a×b= ③a÷b=
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/05 20:48:55
若a=0.00...024(2009个0),b=0.00...05(2010个0)①a+b=②a×b=③a÷b=若a=0.00...024(2009个0),b=0.00...05(2010个0)①a+
若a=0.00...024(2009个0),b=0.00...05(2010个0) ①a+b= ②a×b= ③a÷b=
若a=0.00...024(2009个0),b=0.00...05(2010个0) ①a+b= ②a×b= ③a÷b=
若a=0.00...024(2009个0),b=0.00...05(2010个0) ①a+b= ②a×b= ③a÷b=
( 1 )a+b=0.00...024+0.00...05=0.00...029(注意数位对齐,2009个0)
(2)a×b=0.00...024×0.00...05=0.00...0120
(根据小数乘法法则,a×b积的小数位数应该有(2009+2)+(2010+1)=4022位,4019个0)
(3)a÷b=0.00...024÷0.00...05=24÷5=4.8(根据小数除法法则,将a、b的小数点同时向右移动2011位,正好是24÷5,而商不变.)
若a、b、c在数轴上的对应点如图所示,且|a|=|b|,(1)计算100-99a-99b; (2)确定(a-b)(b-c)(a-c)的符号;...
www.jyeoo.com/...7-7fee-46ce-8a89-b41af4b26e4e - 2012-10-30 -
若a=0.00...024(2009个0),b=0.00...05(2010个0) ①a+b= ②a×b= ③a÷b=
若a^(a-3)=1(a不等于0),则a的值有几个A 4个 B 3个 C 2个 D 1个
若:A=0.(2009个0)25,b=0.(2010个0)4,求:A×b
已知a=0.00...024(2014个0);b=0.00...008(2014个0);那么a×b=()a÷b=()
若a=0.00...025(2002个0),b=0.00...04(2003个0),求:a+b=( ).a一b=( ).a×b=( ).若a=0.00...025里面有(2002个0),b=0.00...04里面有(2003个0),求:a+b=().a一b=( ).a×b=( ).
已知a=0.00...(2000个0)0125,b=0.00...(2004个0)08,求:a+b,b-a.
已知A=0.00(100个0)12,B=0.00(101个0)8,计算A+B= A-B= A*B= A/B=
a=0.00.0125(1984个0),b=0.00.08(1988个0)试求:a+b,a-b,a*b,a/b
1.A=0.00...0125 有1996个0 B=0.00.08 有2000个0试求A+B A-B A*B A/B
a=0.00.0.125[1996个0】,b=0.00.08【2000个0】,a+b=?
已知a=0.00.002(2010个0),b=0.00.05(2012个0),那么a﹢b﹦
若a=0.00...025里面有2002个0,b=0.00...04里面有2003个0,求:a+b=().a一b=( ).a×b=( ).
a=0.00...0125(2002个0),b=0.00...08(2004个0) 求(1)a+b=?(2)a*b=?(3)a/b=?
a=0.00.0125(1996个0), b=0.00.08(1996个0),求a×b,a÷b,a+b
a=0.00...012(100个0) b=0.0..08(101个0) 求a+b= a-b= a*b=
a=0.00...012(2000个0) b=0.0..08(2001个0) 求a+b= a-b= a*b=
已知,a=0.00……(2012个0)024,b=0.00……(2012个0)008:;那么,a×b=( ) ,a÷b=( )
已知a=0.00...012 99个0 b=0.0...025 100个0 c=0.0...08 100个0求a/(b*c)