脫式計算,能簡算的要簡算7 32 (3 8 1 3295 6 18 9535 81 16 37)56 1 5 1 2 (

2021-03-30 12:36:36 字數 4539 閱讀 3827

1樓:手機使用者

(1)7.32-(3.8+1.32),

=7.32-1.32-3.8,

=6-3.8,

=2.2;

(2)95.6×18-953

5×8,

=95.6×18-190.6×8

=1720.8-1524.8,

=196;

(3)(1-16×3

7)÷56

,=(1-1

14)÷56,

=1314×65

,=3935;

(4)1.5÷[1.2-(0.4+0.5)],=1.5÷[1.2-0.9],

=1.5÷0.3,

=5;(5)0.125×2+6.6÷8-12.5%,=0.125×2+6.6×0.125-0.125,=0.125×(2+6.6-1),

=0.125×7.6,

=0.125×8×0.95,

=1×0.95,

=0.95;

(6)6.7×0.25+9.3÷4,

=6.7×0.25+9.3×14,

=(6.7+9.3)×14

,=16×14,=4.

脫式計算,能簡算的要簡算?

2樓:歡歡喜喜

脫式計算是一個數學學科術語,即遞等式計算,把計算過程完整寫出來的運算,也就是脫離豎式的計算。

(1)2/3+1/4+3/8

=16/24+6/24+9/24

=31/24。

(2)2/5+5/6-2/3

=12/30+25/30-20/30

=17/30。

(3)7/8-(5/12+1/3)

=7/8-(5/12+4/12)

=7/8-9/12

=7/8-6/8

=1/8。

(4)4/5-2/15-7/15

=12/15-2/15-7/15

=3/15

=1/5。

(5)2/15+3/8+7/15+5/8

=(2/15+7/15)+(3/8+5/8)=9/15+1

=3/5+1

=1又5分之3。

脫式計算(能簡算的要簡算)1.25×3.2×8 ...

3樓:你猜

(1)1.25×3.2×8

=1.25×8×3.2

=10×3.2

=32;

(2)0.45×6.2+3.8×0.45

=0.45×(6.2+3.8)

=0.45×10

=4.5;

(3)2.7×9.9

=2.7×(10-0.1)

=2.7×10-2.7×0.1

=27-0.27

=26.73;

(4)15×10.2

=15×(10+0.2)

=15×10+15×0.2

=150+3

=153;

(5)0.25×[(2.8+4.4)÷1.2]=0.25×[7.2÷1.2]

=0.25×6

=1.5;

(6)[32-(1.95-1.95)]÷1.6=[32-0]÷1.6

=32÷1.6

=20.

脫式計算:(能簡算的要簡算)7.8÷1.25÷80.67×99+0.673.76×2.9-1.9×3.762.5×3.2×1.250.38+9.62÷3

4樓:kyoya雀

(1)7.8÷1.25÷8

=7.8÷(抄

襲1.25×8)

=7.8÷10

=0.78

(2)0.67×99+0.67

=0.67×(99+1)

=0.67×100

=67(3)3.76×2.9-1.9×3.76=3.76×(2.9-1.9)

=3.76×1

=3.76

(4)2.5×3.2×1.25

=(2.5×4)×(0.8×1.25)

=10×1

=10(5)0.38+9.62÷3.7×5.2=0.38+2.6×5.2

=0.38+13.52

=13.9

(6)7.8×3.2+7.8×7.8-7.8=7.8×(3.2+7.8-1)

=7.8×10=78

脫式計算,能簡算的要簡算

5樓:東姐

(1)5020-2940÷28×37

=5020-105×37

=5020-3885

=1135

(2)56×0.25+14×16

=14×4×0.25+14×16

=14×(4×0.25+16)

=14×(1+16)

=14×17

=238

(3)36×(712+59-14)

=36×757

=27252

(4)72÷(76-72)×3

=72÷4×3

=18×3

=54(5)73

5×2.4+7.6×83

5-73

5=73

5×(2.4+83

5-1)

=7.6×(2.4+8.6-1)

=7.6×10

=76(6)(2-34×4

5)÷(1

12+415)

=(2-3

5)÷7

20=7

5×207=4

脫式計算(能簡算的要簡算

6樓:手機使用者

(1)860+140×18

=860+2520

=3380;

(2)873-(273+315)

=873-273-315

=600-315

=285;

(3)298+537

=300+537-2

=837-2

=835;

(4)487-103

=487-100-3

=387-3

=384;

(5)675÷25

=675÷5÷5

=135÷5

=27;

(6)819÷(108-99)

=819÷9

=91.

脫式計算【可以簡便的要簡便】 (1/8-3/14+1/7)*12

7樓:匿名使用者

(1/8-3/14+1/7)*12

=(1/8-3/14+2/14)×12

=(1/8-1/14)×12

=3/2-6/7

=21/14-12/14

=9/14

8樓:

(1/8-3/14+1/7)*12

=(1/8-1/14)x12

=(14/112-8/112)x12

=6/112x12

=9/14

脫式計算:(能簡算的要簡算)437×482+518×437=8.07-1.65-2.35=5.65×2.8+4.35×2

9樓:丕俏

(1)437×482+518×437,

=437×(482+518),

=437×1000,

=437000;

(2)8.07-1.65-2.35,

=8.07-(1.65+2.35),

=8.07-4,

=4.07;

(3)5.65×2.8+4.35×2.8,=(5.65+4.35)×2.8,

=10×2.8,

=28;

(4)40-3.16-(18+2.2)+10.6,=40+10.6-(3.16+20.2),=50.6-23.36,

=27.24.

脫式計算(能簡算的要簡算

10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.

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