
BIỂU THỨC CHỨA CHỮ LỚP 4
Quiz
•
Mathematics
•
4th Grade
•
Practice Problem
•
Easy
Quynh Tran
Used 3+ times
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32 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Biểu thức có chứa một chữ gồm có:
Các số
Dấu tính
Một chữ
Tất cả đều đúng
2.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Nếu a = 5 thì 12 + a = ...
16
17
18
Answer explanation
Nếu a = 5 thì 12 + a = 12 + 5 = 17
Ở đây, ta thay a = 5 vào biểu thức ban đầu rồi thực hiện tính như bình thường.
3.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Nếu a = 10 thì 65 + a = ...
55
65
75
4.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Nếu a = 20 thì 100 - a = ...
60
70
80
5.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Nếu m = 5 thì 45 : m = ...
4
8
9
6.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Tính A = 100 + 20 : a với a = 4
30
105
100
120
Answer explanation
Nếu trong biểu thức có cả phép nhân (chia) và phép cộng (trừ) thì ta phải thực hiện nhân (chia) trước, cộng (trừ) sau.
7.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Với c = 5. Vậy 25 + 4 x c = ...
25
35
45
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