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Authored by Duyên Nguyễn Thuý
Mathematics, English, Other
1st - 3rd Grade
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong các số sau, số nào là số nguyên tố: 2, 4, 13, 19, 25, 31
A. 2, 4, 13, 19, 31
B. 4, 13, 19, 25, 31
C. 2, 13, 19, 31
D. 2, 4, 13, 19
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Khẳng định nào sau đây là sai?
A. Số 2 là số nguyên tố bé nhất
B. Mọi số nguyên tố đều là số lẻ
C. Hợp số là số tự nhiên lớn hơn 1, có nhiều hơn 2 ước
D. Có 2 số tự nhiên liên tiếp là số nguyên tố
3.
FILL IN THE BLANK QUESTION
10 sec • 1 pt
Điền vào ô tròn trong Phân tích ra thừa số nguyên tố sau ( Viết số, không viết chữ)
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Khẳng định nào sau đây là đúng
120=.......
2.3.5
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Khẳng định nào sau đây là đúng
550=.......
5.2.11
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Phân tích số 150 thành tích các thừa số nguyên tố:
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