下面各題怎樣簡便就怎樣算360 15

時間 2021-05-07 20:01:38

1樓:專屬nnn丶

(1)360÷15-2.5×1.4,

=24-2.5×(1+0.4),

=24-2.5×1-2.5×0.4,

=24-2.5-1,

=21.5-1,

=20.5;

(2)5 6

×2 3

+4 9

÷1 6

,=5 9

+4 9

×6,=5 9

+24 9

,=29 9

;(3)0.16+4÷(3 8

-1 8

),=0.16+4÷1 4

,=0.16+16,

=16.16;

(4)3 7

-2 5

+4 7

-3 5

,=(3 7

+4 7

)-(2 5

+3 5

),=1-1,=0.

360除以15減2.5乘1.4用簡便運算

2樓:在乘風亭徜徉的荀攸

最後結果等於20.5。

親們,點贊謝謝

3樓:公西正

=360÷15-2.5×(1+0.4)

=360÷15-(2.5×1+2.5×0.4)=360÷15-(2.5+1)

=360÷15-3.5

=24-3.5

=20.5

下面各題能簡算的要用簡便計算.1.36+4.85+2.64+6.15 98.5÷2.5÷4 5.4÷[2.5×(3.7-2.9)]0.8×(4-3.6

4樓:□小千

(1)1.36+4.85+2.64+6.15,=(1.36+2.64)+(4.85+6.15),=4+11,

=15;

(2)98.5÷2.5÷4,

=98.5÷(2.5×4),

=98.5÷10,

=9.85;

(3)5.4÷[2.5×(3.7-2.9)],=5.4÷[2.5×0.8],

=5.4÷2,

=2.7;

(4)0.8×(4-3.68)÷0.01,=0.8×0.32÷0.01,

=0.256÷0.01,

=25.6;

(5)83.7-12.83-0.17,

=83.7-(12.83+0.17),

=83.7-13,

=70.7;

(6)5.96+13×(3.2-3.12),=5.96+13×0.08,

=5.96+1.04,=7.

3060÷15-2.5×36有簡便麼?怎麼簡便?

5樓:南方飛虹

3060÷15-2.5×36有簡便麼?怎麼簡便?

3060÷15-2.5×36

=204-2.5×4×9

=204-10×9

=204-90

=114

下面各題能簡算的要用簡便計算

6樓:入戲

(1)1.36+4.85+2.64+6.15,=(1.36+2.64)+(4.85+6.15),=4+11,

=15;

(2)98.5÷2.5÷4,

=98.5÷(2.5×4),

=98.5÷10,

=9.85;

(3)5.4÷[2.5×(3.7-2.9)],=5.4÷[2.5×0.8],

=5.4÷2,

=2.7;

(4)0.8×(4-3.68)÷0.01,=0.8×0.32÷0.01,

=0.256÷0.01,

=25.6;

(5)83.7-12.83-0.17,

=83.7-(12.83+0.17),

=83.7-13,

=70.7;

(6)5.96+13×(3.2-3.12),=5.96+13×0.08,

=5.96+1.04,=7.

怎樣簡便就怎樣算 35.6+(12.6-4.4) 90÷0.4÷2.5 0.86×15.4-14.4×0.86 5.4÷0.6+(2.3-0.46

7樓:匿名使用者

(1)35.6+(12.6-4.4),

=35.6+8.2,

=43.8;

(2)90÷0.4÷2.5,

=90÷(0.4×2.5),

=90÷1,

=90;

(3)0.86×15.4-14.4×0.86,=0.86×(15.4-14.4),

=0.86×1,

=0.86;

(4)5.4÷0.6+(2.3-0.46),=5.4÷0.6+1.84,

=9+1.84,

=10.84;

(5)7.52×10.1,

=7.52×(10+0.1),

=7.52×10+7.52×0.1,

=75.2+0.752,

=75.952;

(6)1.25×0.7×0.8,

=1.25×0.8×0.7,

=1×0.7,

=0.7.

720÷15-2.5×14。怎樣簡便怎樣算?

8樓:知識之窗

720÷15-2.5×14

=48-2.5×14

=48-35=13

脫式計算 5-5/14÷3/4+22/7 76.3×5/9+27-4/5 13/50÷8/15÷34/40 6.2÷9/5 6.2÷9/6+2.5×5/9 化

9樓:辛新土

計算2.4:0.75

=2.4x4/3

=3.2

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