Fifth grade math exercises 1. There are 25 white rabbits and 30 gray rabbits.

How many percent more gray rabbits are there than white rabbits?

2. Simei Salt Factory planned to produce 450 tons of salt last month, but actually produced 480 tons.

How many percent more was produced than planned?

3. Xiao Ming’s family used 80 kWh of electricity in August. Xiao Liang’s family saved 10 kWh compared to Xiao Ming’s family. What percentage did Xiao Liang’s family use less electricity than Xiao Ming’s family in August?

4. A certain fertilizer factory actually produced 5,000 tons of fertilizer in September, 500 tons more than planned.

How many percent more than planned?

5. For a rope, 25% of the total length is cut off for the first time, 35% of the total length is cut off for the second time, and 6 meters are cut off twice. How many meters long is the rope?

6. For a rope, 25% of the total length is cut off for the first time, and 35% of the total length is cut off for the second time. The second time is 1 meter longer than the first time. How many meters long is this rope?

7. The total revenue of Lantian Hat Factory last year reached 9 million yuan. According to the national tax rate regulations, it should pay 17% value-added tax.

How many thousand yuan of value-added tax should be paid per ***?

8. Dad bought a family car worth 120,000 yuan.

A 10% vehicle purchase tax is required as required.

How much does it cost for Dad to buy this car?

1. Uncle Li deposited a current savings of 1,000 yuan in the bank on January 1, 2000. If the monthly interest rate is 0.165%, how much interest can he get after depositing for three months? How much is the principal and interest?

Yuan? 2. My uncle deposited 100,000 yuan in the bank this year, with a fixed term of two years, and an annual interest rate of 4.50%. It will mature after two years, and the interest tax will be deducted at 5%. Can the interest obtained be enough to buy a computer worth 6,000 yuan?

4. Fill in the blanks: 20% off = ( )% 95% off = ( )% 40% = ( )% off 75% = ( ) discount 5. Just list the formula without calculation.

① If you buy a T-shirt, the original price is 80 yuan, how much will it cost if you sell it at a 20% discount?

② There is a model of mobile phone with an original price of 1,000 yuan and a current price of 900 yuan. What is the discount?

③The teacher spent 56 yuan on a pair of jeans in the store because the jeans there were on sale at a 30% discount.

How much is the original price of these jeans?

6. Calculate the discount.

⑴The phenomenon of "discounting" can be seen everywhere in daily life.

There is a fast food restaurant here that is also having a promotion. Can you figure out the discounts on these delicacies?

Each person can choose one to calculate.

①The original price of food is 4 yuan, and the current price is 3 yuan.

②The original price of food is 5 yuan, and the current price is 4 yuan.

③The original price of food is 10 yuan, and the current price is 7 yuan.