分数的加减混合计算及应用题大全及答案
更新时间:2021-06-23
类型:小学五年级数学题
题数:827
答:
(1)-+ =+ =(2)+- =- =(3)-+ =+ =(4)-(+) =- =(5)-(-) =- =(6)1-+ =+ =
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答:
(1)-+ =+ =(2)1-- =1- =(3)-+ =+ =(4) =+ =(5)-(+) =- =(6)+(-) =+ =
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答:
(1)5.4×5.08+3.6×5.08+5.08 =(5.4+3.6+1)×5.08 =10×5.08 =50.8(2)0.25×588.5×400 =0.25×400×588.5 =100×588.5 =58850 (3)[9-(4.68+ 1.42)-1.9]÷0.125 =[9-6.1-1.9]÷0.125 =1÷0.125 =8(4)[(6.1 -
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答:
(1)++ =+ =1(2)-- =- =(3)+++ =+1 =1(4)1-- =- =(5)8-- =8-1 =7 (6)-+ =+ =(7)-(+) =- =(8)-+ =1- =(9)-(-) =- =
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答:
(1)45÷0.75-(15+7.5×0.6) =60-(15+4.5) =60-19.5 =40.5(2)5.25×8.2+5.25×0.8-5.25 =43.05+4.2-5.25 =42(3)18.45-(3.8×2.7+5.3) =18.45-(10.26+5.3) =18.45-15.56 =2.89(4)=--(-)==
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答:
(1);(2)1;(3);(4);(5);(6)
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答:
(1)原式=-+ = (2)原式=+ =1 (3)原式=+ = (4)原式=+(-) =
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答:
(1) = = =1(2)﹣(+) =﹣() =﹣ =(3)+﹣+ =()+() =1(4)4﹣() =4﹣() =4﹣=3(5) = =1 =(6)11﹣ =11﹣() =11﹣1 =10
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