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用你喜欢的方法计算. 136×21352001×3.14+200.1×31.4+20.01×

2022-08-14 02:46:18 问答库 阅读 200 次

问题详情

用你喜欢的方法计算. 136×2

135

2001×3.14+200.1×31.4+20.01×314

5

8

-[(1

2

+3

5

)×5

11

]333×334+999×222

1.25×17.6+36.1÷0.8+2.63×12.511

8

÷(1

4

+2.5×4

5

)

参考答案

(1)136×2135
=(135+1)×2135,
=135×2135+1×2135,
=2+2135,
=22135;

(2)2001×3.14+200.1×31.4+20.01×314
=2001×3.14+2001×3.14+2001×3.14,
=2001×3.14×3,
=(2000+1)×9.42,
=2000×9.42+1×9.42,
=18840+9.42,
=18849.42;

(3)58-[(12+35)×511]
=58-[1110×511],
=58-12,
=18;

(4)333×334+999×222
=333×334+333×(3×222),
=333×334+333×666,
=333×(334+666),
=333×1000,
=333000.

(5)1.25×17.6+36.1÷0.8+2.63×12.5
=1.25×17.6+36.1×1.25+26.3×1.25,
=(17.6+36.1+26.3)×1.25,
=80×1.25,
=100;

(6)118÷(14+2.5×45)
=118÷(14+2),
=98÷94,
=12.

考点:方法