jadin羽毛球拍203_290202sp羽毛球拍
tamoadmin
2024-05-26
(1)97100, 202200, 5100+7200, =500+1400, =1900(元), 1900<2000, 答:李老师带了2000元够
(1)97≈100,
202≈200,
5×100+7×200,
=500+1400,
=1900(元),
1900<2000,
答:李老师带了2000元够.
(2)5×97+7×202,
=485+1414,
=1899(元),
答:他实际用了1899元.