【英语开放探究题1.Maryis12yearsold.two-查字典问答网

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　　【英语开放探究题1.Maryis12yearsold.twoyearsago,shewastwiceasoldasherbrotherJack.HowoldisJacknow?HowoldwillMarybewhenJackistwicehispresentage?2.Peteris15yearsold.Threeyearsago,hisyoungersisterMichaellewasha】

　　英语开放探究题

　　1.Maryis12yearsold.twoyearsago,shewastwiceasoldasherbrotherJack.HowoldisJacknow?HowoldwillMarybewhenJackistwicehispresentage?

　　2.Peteris15yearsold.Threeyearsago,hisyoungersisterMichaellewashalfPeter'sage.HowoldisMichaellenow?

　　3.whyisroomfullofmarriedpeopleempty?

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2020-08-0420:23

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　　1.Maryis12yearsold.twoyearsago,shewastwiceasoldasherbrotherJack.HowoldisJacknow?(12-2)/2+2=7

　　HowoldwillMarybewhenJackistwicehispresentage?7*2+5=19

　　2.Peteris15yearsold.Threeyearsago,hisyoungersisterMichaellewashalfPeter'sage.HowoldisMichaellenow?

　　(15-3)/2+3=9

　　3.whyisroomfullofmarriedpeopleempty?

2020-08-04 20:27:31

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