Math problem √ 32 - √ 1 / 18 + √ 12.5

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• 1. Math problem 18 / 5 * 127 / 5 + 379 / 10 * 32 / 5
• 2. Large barrel: 5L small barrel: 1500ml a large barrel of oil can fill () small bottles
• 3. A big poke of mineral water should be taken as a small bottle of mineral water Small mineral water 1500ml, large mineral water 18L
• 4. Drink one and a half of a bottle of mineral water, and then drink the remaining one and a half. How much is the last? How much is the last?
• 5. How many grams is 1500 ml? water
• 6. There are 10 pencils in a pencil box. We should give them to 10 children. Each child gets one. How can we get one left in the box?
• 7. Junior high school first grade mathematics, the best way to do the problem The following numbers are given in turn: 2, - 4, 8, - 16, 32 Question (1) try to write the following three numbers according to the arrangement of the given numbers (2) What is the number 2010 in this group? What is the number n?
• 8. Do not reuse from 0 to 9, fill in () below （）+（）＝（）+（）＝（）+（）＝（）+（）＝（）+（）
• 9. Math problems, grade one 1. Mr. Li has just graduated from university and wants to buy a single apartment by installment. Through negotiation, the purchase price is paid in three times, 20% more than the previous one. I know that the second payment is 60000 yuan. How much is the total payment for this apartment? 2. Solve the equation 5x% = 20
• 10. Please teachers, brothers and sisters, 1. Use a 12.4 decimeter long wire to form an isosceles trapezoid. The two waists are 6.4 decimeters long, and the area is 9 square decimeters. 2. A barrel of oil weighs 9.2 kg. After half pouring, the barrel weighs 5.6 kg. How many kg? 3. The school bought 4 desks and 9 chairs for 891 yuan. It is known that the price of one desk and 6 chairs is the same, How much is a desk? (equation) 4. For two barrels of oil, the weight of a is 1.8 times that of B. If 1.2kg is taken out of a barrel, then the weight of the two barrels of oil is equal. How many kg are the two barrels of oil?
• 11. Mathematics problem 52 When a steel ball with a diameter of 2 cm rolls on the table, how many cm is the center of the ball from the table
• 12. What day is April 30 and April 1? Please explain the algorithm in detail
• 13. Today is Thursday. What day is it in 28 days?
• 14. A bottle of juice weighs 385g after drinking 25% of it. After drinking 50% of it, the bottle weighs 260g. How many grams of juice and bottle? Please hurry up. Thank you
• 15. There are two bottles of orange juice with different sugar content. A weighs 150g, B weighs 200g. Now pour out the same amount of orange juice and exchange it into a bottle. At this time, the sugar content is equal. How many grams of orange juice are poured out?
• 16. A bottle of drink, after drinking 25%, weighs 950 grams in a row. When drinking 50%, it weighs 700 grams in a row. How many grams do the drink and the bottle weigh?
• 17. A bottle of drink, after drinking 25%, weighs 950g; when drinking 50%, it weighs 700g. How many grams does this bottle and bottle weigh? Just let X and not y
• 18. At present, there are 200 grams of Guozhen beverage with 5% concentration. If the concentration is to be increased to 10%, how many grams of Guozhen should be added to the beverage?
• 19. How many grams of 98% sulfuric acid and how many milliliters of water are needed to prepare 1000 grams of 20% sulfuric acid solution (the density of water is 1g / ml)
• 20. To prepare 1000 ml of 30% sulfuric acid solution (density is 1.22 g / ml), how many ml of concentrated sulfuric acid and water with density of 1.84 g / ml and mass fraction of 98% are needed?