• 2022-05-30
    填一填.3000克=______千克2吨=______千克______千克=7000克8000千克=______吨6千克=______克______吨=4000千克75克+625克=______克=______千克500千克×8=______千克=______吨8吨60千克=______千克65克+845克=______克=______千克600克+400克=______克=______千克472千克+528千克=______千克=______吨500千克×4=______千克=______吨2吨-400千克=______千克=______吨______千克6千克500克=______克5吨60千克=______千克3千克5克=______克.