Ôn tập toán 6
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Exer 1: On line x, y, given 10 points A1, A2, A3, ..., A10. From point A outside xy, we connect A to A1, A2 to A3,... . How many angles whose vertices are A?
A prime number between 42 and 46 is
In the following figure, AN = 5cm and AB = 8cm. NB =............. cm
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Exer 1: Given two natural numbers whose sum are 78293. The bigger number where 5 is the units digit and 2 is hundred digit. If we clean these digits then we obtain a number which equals the smaller number. Find two natural numbers.
Exer 2: Prove that: If x, y in N and x + 2y divisible by 5 then 3x - 4y divisibles by 5.
Exer 3: Given that 2x + 5y ⋮ 7. Prove that 4x + 3y ⋮ 7.
Đọc tiếp
Exer 1: Given two natural numbers whose sum are 78293. The bigger number where 5 is the units digit and 2 is hundred digit. If we clean these digits then we obtain a number which equals the smaller number. Find two natural numbers.
Exer 2: Prove that: If x, y \(\in\) N and x + 2y divisible by 5 then 3x - 4y divisibles by 5.
Exer 3: Given that 2x + 5y \(⋮\) 7. Prove that 4x + 3y \(⋮\) 7.
write the present continuous form of the verb in brackets to complete each sentence, as
i.............(sêe) Rachel on Saturday.
jane and i......................( go out) tonight.
Martha.........................(swim) this afternoon.
We .....................(have) a halloween party on Saturday.
I.........................(take) Sphie out for a birthday dinner tonight.
Vẽ đường thẳng a. Lấy A in a, B in a, C in a, D in a. Kẻ các đường thẳng qua các cắp điểm.a) Kẻ được tất cả bao nhiều đường thảng (phân biệt) ?b) Viết tên các đường thẳng đó.c) D là giao điểm của những đường thẳng nào?Giúp mik nhé! Mik cần gấp lắm lun. Mik tick cho nhé!
Đọc tiếp
Vẽ đường thẳng a. Lấy A \(\in\) a, B \(\in\) a, C \(\in\) a, D \(\in\) a. Kẻ các đường thẳng qua các cắp điểm.
a) Kẻ được tất cả bao nhiều đường thảng (phân biệt) ?
b) Viết tên các đường thẳng đó.
c) D là giao điểm của những đường thẳng nào?
Giúp mik nhé! Mik cần gấp lắm lun. Mik tick cho nhé!
Tìm số thập phân a,bc biết: a,bc = 10 : ( a+b+c )
A string of 2.1m was cut into 6 equal parts. What's the length of each part in cm?
A string of 2.1m was cut into 6 equal parts . What's the length of each part in cm
Chia động từ1. When I got home I found that water ..... down the kitchen walls.(Run)2. After he ...... his English course, he went to England to continue his study. (finish)3. How .......since we ....... collegeA. are you - leftB.were you - leftC. have you been - have leftD. have you been - left4. I .... much of you lately. We ....... three months ago.A. havent seen-last meet B. didnt see-met C. havent seen - have meet D. didnt see - have met5. The Chinese ...... spaghetti dishes for a long tim...
Đọc tiếp
Chia động từ
1. When I got home I found that water ..... down the kitchen walls.(Run)
2. After he ...... his English course, he went to England to continue his study. (finish)
3. How .......since we ....... college
A. are you - left
B.were you - left
C. have you been - have left
D. have you been - left
4. I .... much of you lately. We ....... three months ago.
A. haven't seen-last meet B. didn't see-met C. haven't seen - have meet D. didn't see - have met
5. The Chinese ...... spaghetti dishes for a long time before Marco Polo ..... back to Italy
A. Made-brought B. Have made-brought C. made - havd brought D. had been making-brought
6. When I arrived at the meeting the first speaker ..... speaking and the audience ........
A. just finished-were clapping
B. had just finished-had clapped
C. had just finished-were clapping
D. just finished-had clapped
7. He ..... his job last month and then he.........out of work
A. lost-was B. was lost-had been
C. has lost-was D. lost-have been
8. In the last hundred years, travelling ...... much easier and more comfortable ( become )
9. In the 19th century, iit ...... two or three months to across North America by covered wagon.
( take)
10. In the past, the trip ...... very rough and often dangerous , but things ..... A great deal in the last hundred and fifty years.
A. was-have changed
B. is-change
C. had been-will change
D. has been -changed