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2.8×9.05+9.8×1.056.7×5.3-4.7+5.35.68-4.45+5.32-2.5557.7÷0.1-477÷(13.26-11.76)3.24×2.6-3.24+3.24×8.4[0.15+(4.74-1.8)÷0.4]÷0.1.
题目详情
2.8×9.05+9.8×1.05
6.7×5.3-4.7+5.3
5.68-4.45+5.32-2.55
57.7÷0.1-477÷(13.26-11.76)
3.24×2.6-3.24+3.24×8.4
[0.15+(4.74-1.8)÷0.4]÷0.1.
6.7×5.3-4.7+5.3
5.68-4.45+5.32-2.55
57.7÷0.1-477÷(13.26-11.76)
3.24×2.6-3.24+3.24×8.4
[0.15+(4.74-1.8)÷0.4]÷0.1.
▼优质解答
答案和解析
(1)2.8×9.05+9.8×1.05,
=25.34+10.29,
=35.63;
(2)6.7×5.3-4.7+5.3,
=35.51-4.7+5.3,
=30.81+5.3,
=36.11;
(3)5.68-4.45+5.32-2.55,
=(5.68+5.32)-(4.45+2.55),
=11-7,
=4;
(4)57.7÷0.1-477÷(13.26-11.76),
=57.7÷0.1-477÷1.5,
=577-318,
=259;
(5)3.24×2.6-3.24+3.24×8.4,
=3.24×(2.6-1+8.4),
=3.24×10,
=32.4;
(6)[0.15+(4.74-1.8)÷0.4]÷0.1,
=[0.15+2.94÷0.4]÷0.1,
=[0.15+7.35]÷0.1,
=7.5÷0.1,
=75.
=25.34+10.29,
=35.63;
(2)6.7×5.3-4.7+5.3,
=35.51-4.7+5.3,
=30.81+5.3,
=36.11;
(3)5.68-4.45+5.32-2.55,
=(5.68+5.32)-(4.45+2.55),
=11-7,
=4;
(4)57.7÷0.1-477÷(13.26-11.76),
=57.7÷0.1-477÷1.5,
=577-318,
=259;
(5)3.24×2.6-3.24+3.24×8.4,
=3.24×(2.6-1+8.4),
=3.24×10,
=32.4;
(6)[0.15+(4.74-1.8)÷0.4]÷0.1,
=[0.15+2.94÷0.4]÷0.1,
=[0.15+7.35]÷0.1,
=7.5÷0.1,
=75.
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