
Phần mềm toán học - Cộng hai số nguyên cùng dấu
Authored by Nghiem Thuy
Mathematics
2nd Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính tổng: 3 + 51
27
81
10
54
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tìm x biết x= (+17)+2. vậy x=?
37
29
15
19
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tìm x biết: 126 + x= 180. vậy x=?
54
-54
-72
180
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính tổng: 90+ (+810)
+900
720
-900
-710
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính tổng: (+124)+(+85)
-93
39
-209
209
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tìm x biết: (-6)+ x= -9. vậy x=?
3
-3
15
-15
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính tổng: (-31)+(-62)
-39
-93
31
-35
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