A was written by consecutive natural numbers If A has 103 digits then the last digit of A is Câu 10: Find the last digit of this product: Câu 11: Write.. in the lowest terms:.[r]
(1)Câu 13: VÒNG – TIẾNG ANH Calculate: BÀI 1: The value of A is Câu 1: Lan is years old Her grandmother is How old is Lan's grandmother? Câu 2: of her age Câu 14: Spending 200000 dong on buying books Spending dong on buying books Câu 15: Compare: Câu 3: The sum of age of father and son is 60 years old and son is 30 years younger than father Father Calculate: is The value of A is Câu 16: Câu 4: The average of three numbers is 32 The second number is two times the first number and the third number is six units more than the second number The first number There are 49 students in a class Boy students are the number of girl students There are girl students in this class Câu 5: If is divisible by 2, and then b is Câu 17: If is a natural number and is is Câu 6: Find two consecutive even numbers if the first number is years old BÀI 2: TĂNG DẦN of the second number Answer: The second number is Câu 7: How many natural numbers not greater than 1665 which are divisible by 5? Câu 8: If the sum of denominator and numerator of a fraction is 52 and the denominator is 18 units more than the numerator then the numerator is Câu 9: Let A = 12345678910111213 (A was written by consecutive natural numbers) If A has 103 digits then the last digit of A is Câu 10: Find the last digit of this product: Câu 11: Write in the lowest terms: The value of B is Câu1 2: BÀI 3:ĐI TÌM KHO BÁU then m (2) ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… …… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… …………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… (3) ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… VÒNG 4B – TIẾNG ANH BÀI 1:CÓC VÀNG TÀI BA BÀI 2: ĐỈNH NÚI TRÍ TUỆ (4) Compare: A = and B = Answer: A B Câu 12: If and are two consecutive natural numbers and then Câu 13: BÀI 3: Convert: Câu 1: Câu 14: Compare: If Câu 2: Câu 15: In , which digit is in the tenths place? then If then Answer: Câu 16: Câu 3: If In and then , which digit is in the hundreds place? Answer: Câu 17: Câu 4: Three sides of a triangle are: In , which digit is in the thousandths place? and Its perimeter is Answer: Câu 18: Câu 5: If and and Compare: are two consecutive natural numbers then Câu 19: Câu 6: In these decimal numbers: , which number is the greatest? If and and are two consecutive natural numbers then Answer: ………………………………………………… Câu 7: ………………………………………………… If then Câu 8: Find ………………………………………………… ………………………………………………… if Answer: = ………………………………………………… Câu 9: ………………………………………………… If then ………………………………………………… Câu 10: ………………………………………………… The area of a rectangle is The area of a circle is The sum of area of this rectangle and this circle ………………………………………………… is Câu 11: ………………………………………………… ………………………………………………… (5) ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… ………………………………………………… (6)