脫式計算。 能簡便的簡便1 3 6

2021-03-12 14:36:01 字數 2945 閱讀 2344

1樓:匿名使用者

(1)3.6×5÷3.6×5=25

87.04÷0.4²=544

9÷4.5=2小時 4.5÷9=0.5公頃18-21.6×18÷24.3=2

3.5×(0.32÷0.4)=2.8

(8.1+4.5)÷(7.52-1.5)=

2樓:匿名使用者

6.25÷1%-1.25×25×8

=625-(1.25×8)×25

=625-10×25

=625-250

=375

3/5×81+60%×19

=0.6×(81+19)

=0.6×100

=604/3×4÷4×4/3

=4/3×4/3×(4÷4)

=4/3×4/3

=16/9

13/7×12.5%+12.5%×13/6=(13/7+13/6)×12.5%

=1×12.5%

=0.125

5/4×3.5+5.5×80%+0.8

=0.8×(3.5+5.5+1)

=0.8×10

=8(27+19/18)÷9

=27÷9+19/18÷9

=3+19/2

=3又19/2

81/5×3.6÷1又6/1

=9/2÷7/6

=9/2×6/7

=27/7

3樓:建小之

25沒有長寬尺寸怎麼算

每公頃兩小時,每小時半公頃

脫式計算.(能用簡便方法的就用簡便方法計算)[8.5-(3.6+3.6)]÷2.6 10.1×8...

4樓:清風

(1)[8.5-(3.6+3.6)]÷

du2.6

=[8.5-7.2]÷2.6

=1.3÷2.6

=0.5;

(2)10.1×

zhi87

=(10+0.1)×87

=10×87+0.1×87

=870+8.7

=878.7;

(3)1.4×[(7.5+38.4)÷dao0.9]=1.4×[45.9÷0.9]

=1.4×51

=71.4.

脫式計算(能簡便算的要簡算

5樓:哈了個蜜

(1)(3.8-1.8÷2)×0.5

=(3.8-0.9)×0.5,

=2.9×0.5,

=1.45;

(2)9

10÷[1

2×(65-3

10)]

=910

÷[12

×910

].=9

10÷920,

=2;(3)25+3

7+35+4

7=(25+3

5)+(37+4

7),=1+1,

=2;(4)19×15+1

5×14+17×20%

=19×15+1

5×14+17×15,

=(19+14+17)×15,

=50×15,

=10.

脫式計算(能簡算的要簡算

6樓:軒胤

(1)6.72-2.3÷0.5×0.8

=6.72-4.6×0.8

=6.72-3.68

=3.04;

(2)98-1

7+18-6

7=(98+1

8)-(17+6

7)=54

-1=14;

(3)9

10÷[1

2×(65-3

10)]

=910

÷[12

×910]=9

10÷9

20=2;

(4)(27+1

5)×7×5=27

×7×5+1

5×7×5

=10+7

=17.

脫式計算(能簡算的要用簡便方法計算): ①80÷(1-84%) ②5-5× 2 5 +

7樓:臥牛

①80÷(1-84%),

=80÷0.16,

=500;

②5-5×2 5

+3 5

,=5-2+3 5

,=33 5

;③0.25×32×12.5%,

=0.25×4×8×0.125,

=(0.25×4)×(8×0.125),

=1×1,

=1;④7 9

÷11 5

+2 9

×511

,=7 9

×511

+2 9

×511

,=(7 9

+2 9

)×511

,=1×5

11,=511.

8樓:冼棟屈嘉穎

解:①80÷(1-84%),

=80÷0.16,

=500;

②5-5×

25+35,

=5-2+35,

=335;

③0.25×32×12.5%,

=0.25×4×8×0.125,

=(0.25×4)×(8×0.125),

=1×1,

=1;④79÷115+29×511,

=79×511+29×511,

=(79+29)×511,

=1×511,

=511.

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