???2016?????????????

admin

???2016???????????????????????

?????????????

?1??

1??1?80,20?125?25?

?2?26.5

?3?16

2??1?20�25=80%

?2??25�20?�20=25%

3??3�2.4?�2.4=25%

4?24�?24+48??33.3%

5?(1/5�1/8) �1/5=37.5%

?2??

1??20�16?�16=25%

2??30�15?�30=50%

3??2762�2110?�2110?30.9%

4??2800�2700?�2800?3.6%

5?121�?121�66?=220%

?3??1??120�80?�80=50%

2??1??20�16?�20=20%

?2??20�16?�16=25%

3?23+25=48??? ?48�42?�42?14.3%

4??1??52+75+28?�160?96.9% ?36+69+80?�200=92.5% 1

?2??

?4??1??1?1??0.96??

?2?4.32,3

?3?8.4,0.75

2?860�5%=43????

3?1800�20%=360????

4?7500�10%+7500=8250???

5??1800�1600?�5%=10???

?5??1??1?6000�5.40%�3=972???

?2?972�972�5%=923.4???

2?2000�5.40%�3=324???324�324�5%=307.8???

3?4000�?4.68%�3.06%?2=129.6???

4?5000�40%�4.14%�?1�5%?=78.66???

?6??1??1?�?2???3???4?�

2?70?95?55?65?

3?306�360=85%��???

4?2800�2800�85%=420???

5??????????

?7??1?360�80%=288???440�75%=330???2100�88%=1848??? 2

2??1?5�65%=3.25???3.8�65%=2.47???6�65%=3.9???

?2?10�3.25?3???10�3.9?2???10�2.47?4???

????????????????????????????

3?5800�80%�90%=4176???

?8??1?1500�80%=1200???900�80%=720???580�80%=464???2?4850�4850�90%=485???

3??1?45�96%=43.2????=432000???

?2?432000+432000�1.5%=438480???

4????

?9??1?(1)85%x?1.85x

?2?75%x?0.25x

2?30?20

3?X+70%X=510

X=300

70%X=210

??????30????210??

4?24�?1�20%?=30???30�20%=6???????30????6?? 5?126�?1+80%?=70?????80%�70=56?????

?10??1?2?2?

3

???2016?????????????????????

??? 1.????????

17180 400

170 1800 4000

2.???????

600 130 300

800 24003000

120010003000

3.???

1200 300 250

4.?????????????

90x40=3600?

???1.???????

20014001200

900 600 1200

400 640 250

2.????????

??????

288 1056

3.???

924 504

4.??????????

403528 882

???

5.12x14=168?

6.(1)23x12=276??

(2)42x12=504?

7.6?

???1.???????

3251 50

28 4230

19 41 30

2.????????

3842236 1472

3.??????????

832840 4067

4.18x25=450??

???

5.(1)23x15=345?

(2)345-23=322?

6. 21x26=546? ?

7.???????????19????????????????????????????????????????????????

19x19=361?

???

1.???????

600 5258

1000 70 60

1200 45 52

2.????????

20024

40048

80072

1600 96

3.??????????

15641560 792

2340 1736 1278

???

4. 16x23=368?

5.?1?56x12=672?

?2?56x28=1568?

6.???29-5=24?

???24x2=48?

???

1.

????1000

65x26 45x36

24x42 56x45

2.

?2700?5600? 1500

=2759=5822=1536

3.?1?68x19?1400?

?2?19x4?80? ????1000 28x23 19x49

???

4.??38�39?1600???????39??????? ???39?

5. 100+16x6=196??

6.? ? ??5x25=125?

? ? ??46x12=552?

??? 125+552=677?

???1.???????

90240 400

900 2400 4000

900 2400 4000

2.????????

920 874 760

500 475570

3.???16x60=960?

????????????????????


????2016?????????????????????
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