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用简便方法计算.6×1017.05-3.84-0.165×2.33×40.2×13.8+0.8×13.8.

题目详情
用简便方法计算.
6×1017.05-3.84-0.165×2.33×40.2×13.8+0.8×13.8.
▼优质解答
答案和解析
(1)6×101
=6×(100+1)
=6×100+6×1
=600+6
=606;

(2)7.05-3.84-0.16
=7.05-(3.84+0.16)
=7.05-4
=3.05;

(3)5×2.33×4
=5×4×2.33
=20×2.33
=46.6;

(4)0.2×13.8+0.8×13.8
=(0.2+0.8)×13.8
=1×13.8
=13.8.