2,5 x 0,4 =

LT CỘNG, TRỪ, NHÂN STP

Quiz
•
Others
•
5th Grade
•
Medium
Moon Nguyễn
Used 1+ times
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
100
10
1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1,25 x 0,8 =
1
0,1
10
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
0,25 x 0,4 =
10
1
0,1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
12,5 x 0,8 =
10
1
100
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cách tính nào thuận tiện nhất:
5,69 x 2,5 x 0,4
(5,69 x 2,5) x 0,4
(5,69 x 0,4) x 2,5
(2,5 x 0,4) x 5,69
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Biểu thức nào có giá trị bằng:
(2,4 + 3,8) x 1,2
(2,4 + 1,2) x 3,8
3,8 + 2,4 x 1,2
2,4 x 1,2 + 3,8 x 1,2
7.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Tìm x biết:
x - 5,2 = 2,36 x 3
x = 13,10
x = 12,28
x = 7,6
8.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Mua 3kg gạo phải trả 18 000 đồng. Hỏi mua 4,5kg gạo cùng loại phải trả nhiều hơn bao nhiêu tiền?
6 000 đồng
27 000 đồng
9 000 kg
9 000 đồng
Answer explanation
Giá tiền 1 kg gạo:
18 000 : 3 = 6 000 (đồng)
Số tiền mua 4,5kg gạo:
6 000 x 4,5 = 27 000 (đồng)
Số tiền phải trả nhiều hơn:
27 000 - 18 000 = 9 000 (đồng)
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