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5.6x101 18.8-7.4+2.2-4.6 47-47x100分之99
注:x=乘号
第1个回答 2010-05-26
5.6x101
=5.6X(100+1)
=5.6X100+5.6X1
=560+5.6
=565.6
18.8-7.4+2.2-4.6
=(18.8+2.2)-(7.4+4.6)
=21-12
=9
47-47x100分之99
=47x(1-100分之99)
=47X100分之1
=100分之47
=5.6X(100+1)
=5.6X100+5.6X1
=560+5.6
=565.6
18.8-7.4+2.2-4.6
=(18.8+2.2)-(7.4+4.6)
=21-12
=9
47-47x100分之99
=47x(1-100分之99)
=47X100分之1
=100分之47
第2个回答 2010-05-26
5.6*101=5.6*100+5.6*1=565.6
18.8-7.4+2.2-4.6=(18.8+2.2)-(7.4+4.6)=9
47-47x100分之99:
47-47*0.99=47*(1-0.99)=0.47
18.8-7.4+2.2-4.6=(18.8+2.2)-(7.4+4.6)=9
47-47x100分之99:
47-47*0.99=47*(1-0.99)=0.47
第3个回答 2010-05-26
5.6*(100+1)=560+5.6=565.6
18.8+2.2-7.4-4.6
=21-12
=9
47*(1-100)/99
=-49
18.8+2.2-7.4-4.6
=21-12
=9
47*(1-100)/99
=-49
第4个回答 2010-05-26
5.6x101=5.6*(100+1)=560+5.6=565.6
18.8-7.4+2.2-4.6=(18.8+2.2)-(7.4+4.6)=21-12=9
47-47x100分之99=47*(1-100分之99)=47*100分之1=47/100
18.8-7.4+2.2-4.6=(18.8+2.2)-(7.4+4.6)=21-12=9
47-47x100分之99=47*(1-100分之99)=47*100分之1=47/100
第5个回答 2010-05-26
5.6x101 =5.6*100+5.6*1=565.6
18.8-7.4+2.2-4.6=(18.8+2.2)-(7.4+4.6)=21-12=9
47-47*99/100=47(100-99)/100=47/100本回答被网友采纳
18.8-7.4+2.2-4.6=(18.8+2.2)-(7.4+4.6)=21-12=9
47-47*99/100=47(100-99)/100=47/100本回答被网友采纳