小升初数学(英文).doc

小升初数学（英语出题）一、填空1. If half of a number is 30, then three-quarters of that number is _.2. The sum of the digits of the following product 999*555 is _.3. Three positive integers have a sum of 28, The greatest possible product that these integers can have is _.4. In what follows, and are different numbers. When 503 is divided by the remainderis 20. When 503 is divided by the remainder is 20. When 493 is divided by the remainder is _.5. Let a, b and c are rational numbers which satisfy a-7b+8c=4 and 8a+4b-c=7. Then a2-b2+c2=_.6. During a sale, the price of a book is reduced（减少）by 25%. The sale price is then further（进一步地）reduced by 40%. The cost of the book as a percentage（百分率） of the original（原来的）price is _.7. a/b is a fraction（分数）. If 2 is added to the numerator（分子）, the value of the fraction is 1/2. If 3 is added to the denominator（分母）, the fraction has a value of 1/3. The value of the sum a2 + b2 is ( )8、If n is an integer and 2n is a multiple（倍数）of 3, then 5n must be a multiple of（ ）二、解答题1. Xiaoli this year is the age of her mothers age two seventh, five years later, Xiaoli age will be her mothers three eight. How old is Xiaoli this year?2. In 2006, 9 March falls on Thursday. On what day of the week will 9 March fall in 2012?3. How many square meters grass is the area of the goat can get at most?(单位：m)3334Goat4. Please calculate the volume of the following diagram. (单位:cm)d=54645. Tom makes a round trip of 150 kilometres each way. Coming back Tom was able to average 25 kilometers per hour faster than he had going. If the total trip took threee and a half hours, the how long did it take him to come back?6. It takes 15 days to finish a project by Team A and Team B. After Team A and Team B together do it for 10 days, Team B do it for 6 days alone. Now there is 10