有的话给50分~~跪求苏教版小学六年级下册评价手册单元测评5答案~

2025-02-21 09:33:23
推荐回答(2个)
回答(1):

5 正比例和反比例
正比例的意义
1.(1)
数量/箱 1 2 3 4 5
总价/元 35 70 105 140 175
(2)70∶2 70∶2=35
140∶4 140∶4=35
比值相等
(3)每箱单价 总价÷数量=单价
(4)单价一定,总价和数量成正比例。
2.(1)(√) (2)(√) (3)(√) (4)(√) (5)( )(6)(√) (7)(√) (8)(√)
正比例图像
1.(1)
耕地时间/时 1 2 3 4 6 8
耕地面积/公顷 4 8 12 16 24 32
(2)

(3)成正比例,因为: =工效(一定)
(4)48 12.5
2.成正比例,因为: =工效(一定)
反比例的意义
1.(1)①每小时加工的个数 时间
②加工数 时间 960 加工总量 时间 工效
(2)①
每公顷施肥的吨数 10 20 30 40 50 60 …
施肥的公顷数 60 30 20 15 12 10 …
②成反比例:总量一定,每公顷施肥的吨数和施肥的公顷数成反比例。
2.(1)(√) (2)( ) (3)( ) (4)(√) (5)(√)(6)(√) (7)( ) (8)(√) (9)( )
正比例和反比例
1.(1)反 正 正
(2)反
小华 小明 小胜 小锋
每分钟行的米数 300 240 200 150
需要的分钟数 16 20 24 32
(3)
小华 小明 小胜 小锋
已行的米数 3000 2400 2000 1500
还剩的米数 1800 2400 2800 3300
2.(1)(正比例) (2)(正比例) (3)(不成比例)
(4)(反比例) (5)(正比例) (6)(正比例)
(7)(正比例) (8)(正比例) (9)(反比例)
(10)(反比例) (11)(不成比例)

回答(2):

你先回答http://zhidao.baidu.com/question/252743722.html

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