小数的四则混合运算及应用题大全及答案
更新时间:2021-06-23
类型:小学六年级数学题
题数:289
答:
解:设这位工人损坏了x件瓷器。(300-x)×1.5-2.5x=378 x=18答:这位工人损坏了18件瓷器。
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答:
1.6÷(4+1)=1.2;1.5×90%=1.35(元),所以美美超市比较便宜。
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答:
(11.85-6.00)÷1.30+3=7.5(千米)
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答:
15×2.9+(18-15)×5=58.5(元)
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答:
(1)(20.2×0.4+7.88)÷4.2 =15.96÷4.2 =3.8 (2) =÷ = (3) =×...× =
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答:
(7.5×4%×10000-2966)÷(7.5×4%+8.2)=4(只)
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答:
树干的周长:(1.5×3-1×2)÷(4-3)=2.5(米)绳长:(2.5+1.5)×3=12(米)
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答:
(1) =(19.08+1.9)×0.25 =5.245 (2) =÷[+] = (3) = = (4) = =1 (5) = =2525
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答:
(1) =(4.8-2.4)÷0.24 =10 (2) =-+-+-+-+ =(3) =46+87 =133(4) =0.6×(10+10) =12(5) = =
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答:
(1)(378.5×9.8-1682.3)×0=0 (2)9 = =(3) = =(4) = = (5) =(22+25-7)× =40× =30(6) = = =12.5
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答:
(1)(2.8+4.6)×(2.6-2.1) =7.4×0.5 =3.7(2)0.25×(32+64)÷0.6 =0.23×96-0.6 =4(3) = =2 (4) = =
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答:
6+(7-3)×1.5+(9-7)×2.25=6+6+4.5=16.5(元)
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答:
24÷(1.2+1.8)=8(天)
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答:
25.5×2-1.5=51-1.5=49.5(万元)
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答:
(1)360÷15-4.6×2.7 =24-12.42 =11.58 (2) = = (3)×6.5+0.8+1.5×80% = =7 (4) = =
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答:
(1)1000÷32÷0.25÷1.25 =1000÷(32×0.25×l.25) =1000÷[(4×0.25)×(8×1.25)] =1000÷[1×10] =100 (2)51 = =30+1+40+1 =72
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答:
16÷(0.2÷0.6)=4.8(小时)
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答:
(504-64×4.5)÷4.5=48(千米)
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