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计算:(1)5795.5795÷5.795×579.5;(2)13.64×0.25÷1.1;(3)24×(0.123+0.127)×0.125×(2.52+1.48);(4)(3.74+3.76+3.78+3.8+3.82)×0.04÷24×60;(5)1.25×3.14+125×0.0257+1250×0.00229;(6)3.51×49+35.1×5.1+99
题目详情
计算:
(1)5795.5795÷5.795×579.5;
(2)13.64×0.25÷1.1;
(3)24×(0.123+0.127)×0.125×(2.52+1.48);
(4)(3.74+3.76+3.78+3.8+3.82)×0.04÷24×60;
(5)1.25×3.14+125×0.0257+1250×0.00229;
(6)3.51×49+35.1×5.1+99×51.
(1)5795.5795÷5.795×579.5;
(2)13.64×0.25÷1.1;
(3)24×(0.123+0.127)×0.125×(2.52+1.48);
(4)(3.74+3.76+3.78+3.8+3.82)×0.04÷24×60;
(5)1.25×3.14+125×0.0257+1250×0.00229;
(6)3.51×49+35.1×5.1+99×51.
▼优质解答
答案和解析
(1)5795.5795÷5.795×579.5
=1000.1×579.5
=1000×579.5+0.1×579.5
=579500+57.95
=579557.95;
(2)13.64×0.25÷1.1
=3.41÷1.1
=3.1;
(3)24×(0.123+0.127)×0.125×(2.52+1.48)
=24×0.25×0.125×4
=6×0.125×4
=(0.125×8)×3
=1×3
=3;
(4)(3.74+3.76+3.78+3.8+3.82)×0.04÷24×60
=18.9×0.04÷24×60
=18.9×(0.04×60÷24)
=18.9×0.1
=1.89;
(5)1.25×3.14+125×0.0257+1250×0.00229
=125×0.0314+125×0.0257+125×0.0229
=125×(0.0314+0.0257+0.0229)
=125×0.08
=10;
(6)3.51×49+35.1×5.1+99×51
=35.1×4.9+35.1×5.1+(100-1)×51
=35.1×(4.9+5.1)+(100×51-1×51)
=35.1×10+(5100-51)
=351+5049
=5400.
=1000.1×579.5
=1000×579.5+0.1×579.5
=579500+57.95
=579557.95;
(2)13.64×0.25÷1.1
=3.41÷1.1
=3.1;
(3)24×(0.123+0.127)×0.125×(2.52+1.48)
=24×0.25×0.125×4
=6×0.125×4
=(0.125×8)×3
=1×3
=3;
(4)(3.74+3.76+3.78+3.8+3.82)×0.04÷24×60
=18.9×0.04÷24×60
=18.9×(0.04×60÷24)
=18.9×0.1
=1.89;
(5)1.25×3.14+125×0.0257+1250×0.00229
=125×0.0314+125×0.0257+125×0.0229
=125×(0.0314+0.0257+0.0229)
=125×0.08
=10;
(6)3.51×49+35.1×5.1+99×51
=35.1×4.9+35.1×5.1+(100-1)×51
=35.1×(4.9+5.1)+(100×51-1×51)
=35.1×10+(5100-51)
=351+5049
=5400.
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