字典翻译 问答 小学 英语 有关正负数.Amerchantsoldacalculatoratlossof$2andsoldabookatalossof$1.Representagainbyapositivenumberandalossbyanegativenumber.Usedirectednumberstofindtheanswerstothefollowingquestions.(1)Whatwasthemre
问题标题:
有关正负数.Amerchantsoldacalculatoratlossof$2andsoldabookatalossof$1.Representagainbyapositivenumberandalossbyanegativenumber.Usedirectednumberstofindtheanswerstothefollowingquestions.(1)Whatwasthemre
问题描述:

有关正负数.

Amerchantsoldacalculatoratlossof$2andsoldabookatalossof$1.Representagainbyapositivenumberandalossbyanegativenumber.Usedirectednumberstofindtheanswerstothefollowingquestions.

(1)Whatwasthemrechant'stotallossafterhesoldthecalculatorandthebook?

(2)Ifthemerchantsoldapenatagainof$4,whatwastheoverallgainorlossafterhehassoldacalculator,abookandapen

李妹芳回答:
  (1)-$3,   (2)+$4-$3=+$1
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