脫式計算4 82 5 2

2021-03-17 01:09:58 字數 2881 閱讀 9959

1樓:暗朇

(1)4.82-5.2÷0.8×0.6,

=4.82-6.5×0.6,

=4.82-3.9,

=0.92;

(2)5 7

÷[1÷(2 3

-1 5

)],=5 7

÷[1÷7

15],

=5 7

÷15 7

,=1 3

;(3)0.8×[1÷(3.2-2.95)],=0.8×[1÷0.25],

=0.8×4,

=3.2.

脫式計算(能簡算的要簡算

2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.

4.82-5.2÷0.8x0.6的簡便計算法

3樓:楓葉

4.82-5.2÷0.8×0.6

=4.82-6.5×0.6

=4.82-3.9

=0.92

你好,本題已解答,如果滿意

請點右下角「採納答案」。

(5.32 0.98)÷0.0449÷(0.25÷4)脫式計算怎麼算?

4樓:

0.175÷0.25÷0.4

=0.175÷(0.25x0.4)

=0.175÷(0.1)

=1.75

5樓:死你碼綠茶倩

(1)6760÷bai13+17×du25,

zhi =520+425,dao =945;(

回2)4.82-5.2÷0.

8×答0.6, =4.82-6.

5×0.6, =4.82-3.

9, =0.92;(3)35÷7 8 ×1-2 7 =40×1-2 7 , =40-2 7 , =395 7 .

脫式計算,4/5÷[8×(1/2-2/5)],[1-(1/4+3/8)]÷1/4?

6樓:匿名使用者

4/5÷[8×

(1/2-2/5)]

=4/5÷[8×1/10]

=4/5÷4/5

=1[1-(1/4+3/8)]÷1/4

=[1-5/8]÷1/4

=3/8÷1/4

=3/2

9×13×(5/13+5/9)

=9×13×5/13+9×13×5/9

=45+65

=110

7樓:妙酒

4/5÷[8×(1/2-2/5)]

=4/5÷(8x1/10)

=4/5÷4/5

=1[1-(1/4+3/8)]÷1/4

=(1-5/8)x4

=3/8x4

=3/2

9×13×(5/13+5/9)

=9x13x5/13+9x5/9x13

=9x5+5x13

=5x(9+13)

=5x22

=110

脫式計算.300-64×84÷284-1÷3- 1 3 ×8(2 4 5 +0.6÷ 6 35 )×2.

8樓:黑岩の愛

(1)300-64×84÷28,

=300-5276÷28,

=300-192,

=108;

(2)4-1÷3-1 3

×8,=4-1 3

-8 3

,=4-(1 3

+8 3

),=4-3,

=1;(3)(24 5

+0.6÷6

35)×2.4,

=(24 5

+7 2

)×2.4,

=6.3×2.4,

=15.12;

(4)[11 8

-(13

20+0.35)÷11 7

]×3.2,

=[11 8

-1÷11 7

]×3.2,

=[11 8

-7 8

]×3.2,

=2 8

×3.2,

=0.8.

3+56÷0.8-5.7 (3/4×1/6+3/4×5/6)÷3/2簡便計算

9樓:匿名使用者

寶寶你多大了,幾年級,這些題遵循乙個原則,先括號在括號外,先乘除再加減,你試試

10樓:凌月霜丶

3+56÷0.8-5.7

=3+70-5.7

=73-5.7

=67.3

(3/4×1/6+3/4×5/6)÷3/2簡便計算(3/4×1/6+3/4×5/6)÷3/2=3/4*(1/6+5/6)÷3/2

=3/4*1*2/3

=1/2

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