1, Xiaoming's homework is all finished, that is, ()%, Xiaojun is half finished, that is, ()%.

There are 55% boys in the sixth grade, which means that () is 55% of ().

There are 30% more chickens than geese in the chicken farm, which means that () is 55% of ().

4. The TV factory planned to produce 100 TV sets, but actually produced 1 12 TV sets, which was equivalent to ()% of the original plan and ()% of the overfulfilled plan.

5. "The actual output is 1 15% of the planned output, but compared with (), the actual output has increased by ()%.

6. The electricity consumption this year is less than last year 15%, and this year's electricity consumption is equivalent to last year's ()%.

7. This year's output value is equivalent to last year's 108%. Writing (), this year's output value is higher than last year ().

8. In the sixth grade, 500 trees were planted, and 450 trees survived, accounting for ()% of the total.

Second, judge whether:

1, and meters are percentages. ( )

2. The meaning of percentage is exactly the same as that of fraction. ( )

3.37.5% is read as 37.5%. ( )

4. Divide 1 kg of sugar into 100 portions, with each portion being 1% kg. ( )

5. The number A is the number B, which is equivalent to 25% of the number B ... ()

Third, read the following percentages:

10.6% Pronunciation: ()

0.08% pronunciation: () 100% pronunciation: ()

5% Pronunciation: () 150% Pronunciation: ()

Four, write the following percentage:

Nine percent of writing () and ten point five percent of writing ().

200% writing () and 104% writing ()

0.02% and 70% write ().

Verbs (short for verb) solve problems.

1, a barrel of oil is 20 Jin, and it takes 16 Jin. How much is it?

2. A barrel of oil is 20 kilograms. How many kilograms is left after it has been used?

3. A barrel of oil is 20kg, and there is some left after it is used up. How many kilograms do you need?

4, a barrel of oil, used 18 Jin, and the rest. How many kilograms is this barrel of oil?

5、

A pile of cement;

20% more

B pile cement:

() is the number of "1", the cement of pile () is 20% more than that of pile (), and the cement of pile B is equivalent to that of pile A ()%.

6. There are 32 boys and 28 girls in one class. What is the ratio of boys to girls? What is the number of boys in the class? What percentage of girls are in the class? How many points are boys more than girls? How many points are girls less than boys? What percentage of boys are more than girls in the class?