百分数与混合运算40道
来源:学生作业帮助网 编辑:作业帮 时间:2024/03/29 17:00:14
1.15.6-7/9+54%-2=2.14.3+5/7-66%x5=3.34.4-3/43+41%x3=再问:还有多一点么??谢谢啦~再答:数字改改就行,符号不用变的
1.125*3+125*5+25*3+252.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)4.3/7×49/9-4/35.8/9×15/36+1/276.12×
1.125*3+125*5+25*3+252.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)4.3/7×49/9-4/35.8/9×15/36+1/276.12×
7/19+12/19×5/61/4+3/4÷2/38/7×21/16+1/2101×1/5–1/5×2150+160÷40(58+370)÷(64-45)120-144÷18+35347+45×2-4
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
(1)大豆的出油率是54%,用40千克大豆可以榨油多少千克?(2)杉树的成活率是95%,今年植树节植树成活了285棵,求一共植了多少棵树?(3)一本书360页,第一天看了全书的40%,第二天看了全书的
一定要选我为最佳答案呀,我可费啦半天劲呢!1.125*3+125*5+25*3+252.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)4.3/7×49/9-4/3
1分数乘法:(1):分数乘整数:2/5*8.按8个人2/5计算.(2):整数乘分数:7*2/9按求7的几分之几计算.(3)分数乘分数:1/3*4/7.按分子乘分子的积做分子,分母乘分母的积做分母计算.
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
1.1/3*(5*(2/3))2.(1+37%)*203.35/2*75%4.30*(50/2)5.(54+10%)/206.(25/3*18)*30%7.(2+70%)*408.1/7*(98*(1
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
哦,网址:http://zhidao.baidu.com/q?word=%D5%FB%CA%FD%D0%A1%CA%FD%B7%D6%CA%FD%B0%D9%B7%D6%CA%FD%BB%EC%BA%
解题思路:本题主要根据小数、分数的互化及计算法则进行解答。解题过程:
1.1/3*(5*(2/3))2.(1+37%)*203.35/2*75%4.30*(50/2)5.(54+10%)/206.(25/3*18)*30%7.(2+70%)*408.1/7*(98*(1
7/19+12/19×5/61/4+3/4÷2/38/7×21/16+1/2101×1/5–1/5×2150+160÷40(58+370)÷(64-45)120-144÷18+35347+45×2-4
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
把分数和百分数化成小数就可以了
(1)103÷73-159-57=(2)83×91÷131+38=(3)197-46+67-13=(4)38÷54×126-52=(5)192+52×136÷66=(6)123-47+159-16=(