
Bài toán tính ngược
Quiz
•
Mathematics
•
2nd Grade
•
Practice Problem
•
Medium
Ngọc Anh
Used 13+ times
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6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tìm x biết: x + 19 = 32
x = 13
x = 11
x = 23
x = 21
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tìm x biết: x – 31 = 42 + 17
x = 59
x = 90
x = 80
x = 28
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tìm A, biết:
12
51
33
21
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mai có một số bút chì. Mai cho Thảo 9 bút chì và cho Nam 3 bút chì thì còn lại 18 bút chì. Hỏi lúc đầu Mai có bao nhiêu cái bút chì?
21
27
6
30
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Minh có một số quyển sách. Minh cho Chi mượn 13 quyển, sau đó mẹ mua thêm cho Minh 5 quyển thì Minh có 34 quyển sách. Hỏi ban đầu Minh có bao nhiêu quyển sách?
21
52
42
16
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hòa có một số kẹo. Sau khi bạn ấy cho An 8 cái kẹo và nhận thêm 17 cái từ Linh thì Hòa có 35 cái kẹo. Hỏi lúc đầu Hòa có bao nhiêu cái kẹo?
35
12
60
26
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