Ôn tập
Authored by Thanh Luyến Nguyễn
Mathematics
4th Grade
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
1. Chọn đáp án đúng
Với a=30 , b=45 thì a + b = ......
30
75
100
120
2.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Nếu a = 5 thì 12 + a = ...
15
16
17
18
3.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Cho cạnh hình vuông là m, m = 10cm. Chu vi hình vuông đó là:
30cm
40cm
50cm
45cm
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Viết số thích hợp vào chỗ chấm:
….. + 25000 = 25000 + 39000
65000
39000
10000
50000
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Cho cạnh hình vuông là a, a = 5cm. Tính diện tích hình vuông
25cm2
30cm2
10cm2
20cm2
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Câu 14: Giá trị của biểu thức 468 x 5 - 1279 + a với a là số chẵn lớn nhất có 4 chữ số khác nhau là
10936
10937
11058
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Nêu cách tính nhanh nhất của phép tính dưới đây:
E = 193 + 27 - 93 + 73
E = (193 + 27) - (93 + 73)
E = ( 193 + 27) - (93 -73)
E = (193 - 93) + (27 + 73)
E = (193 + 73) - (97 - 27)
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