遞等式計算(能簡便的要簡便計算)9 6

時間 2021-05-07 19:58:48

1樓:萌曉

9.6÷0.4×0.25,

=24×0.25,

=0.25×4×6,

=6;8.68-8.68÷0.56×0.5,=8.68-8.68×(0.5÷0.56),=8.68×(1-0.5÷0.56),

=8.68×0.06÷0.56,

=8.68×3

28,=0.93;

29.7÷(5.85÷0.65),

=29.7÷9,

=3.3;

1.25×3.2×0.8,

=(1.25×0.8)×3.2,

=1×3.2,

=3.2;

14.5×102,

=14.5×(100+2),

=14.5×100+14.5×2,

=1450+29,

=1479;

4.7×4.7+4.7+4.7×4.3,

=(4.7+1+4.3)×4.7,

=10×4.7,

=47.

遞等式計算.(能簡算的要簡算)9.6÷0.4×0.25 29.7÷(5.85÷0.65) 7.4×9.9 3.84-2.7×0.64 8.68-8.6

2樓:皽圧殷

(1)9.6÷0.4×0.25,

=24×0.25,

=6;(2)29.7÷(5.85÷0.65),

=29.7÷9,

=3.3;

(3)7.4×9.9,

=7.4×(10-0.1),

=7.4×10-7.4×0.1,

=74-0.74,

=73.26;

(4)3.84-2.7×0.64,

=3.84-1.728,

=2.112;

(5)8.68-8.68÷0.56×0.5,=8.68-15.5×0.5,

=8.68-7.75,

=0.93;

(6)4.7×4.7+4.7+4.3×4.7,=4.7×(4.7+4.3+1),

=4.7×10,

=47.

8.68-8.68÷0.56×0.5怎樣簡算?

3樓:義明智

8.68-8.68÷0.56×0.5

=8.68-8.68x0.5÷0.56

=8.68-4.34÷0.56

=8.68-7.75

=8.68-8+0.25

=0.68+0.25

=0.93

用遞等式計算,寫出必要的計算過程,能簡便運算的要用簡便方法計算.100-870÷29-8815÷7.5+4.6-6.63.5×

4樓:桃兒

①100-870÷

29-88

=100-30-88

=-18

②15÷7.5+4.6-6.6

=2+4.6-6.6

=6.6-6.6

=0③3.5×

64×12.5

=(3.5×8)×內(8×12.5)

=28×100

=2800

④容51×7.5-49×7.5-1

=(51-49)×7.5-1

=2×7.5-1

=15-1

=14⑤4×(4.8+3.2÷4-5.6)=4×(4.8+0.8-5.6)

=4×0

=0⑥[8+(5-2)÷1.2]×5

=[8+3÷1.2]×5

=10.5×5

=52.5

遞等式計算(能簡便的要簡便) (8分之5+6分之5)*25分之4

5樓:巨集哥

(5/8+5/6)×

4/25

=5/8×4/25+5/6×4/25

=1/10+2/15

=7/30

3/5x=25/72

解專:x=25/72÷屬3/5

x=125/216

x÷6/35=26/35÷13/25

解: x=10/7×6/35

x=12/49

4x+16-2x=26

解: 2x=26-16

x=10÷2x=5

6樓:匿名使用者

遞等式計算(能簡便的要簡便)

(8分之

5+6分之5)*25分之4

[(5/8)+(5/6)]*(4/25)

解,得:專

==(5/8)(4/25)+(5/6)(4/25)==(1/10)+(2/15)

==7/30

解方程:

5分之屬3x=72分之25

3x/5==25/72

解,得:

72*3x==5*25

x=5*25/(72*3)

x==125/216

x÷35分之6=35分之26÷25分之13x/(6/35)==(26/35)/(13/25)解,得:

35x/6==10/7

x==(10/7)*(6/35)

x==12/49

4x+2(8-x)=26

解,得:

4x+16-2x-26==0

2x==10

x==5

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