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Khách
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Các câu hỏi dưới đây có thể giống với câu hỏi trên
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21 tháng 6 2017
a) 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 + 50 = 50 x 12
= 600
b) 100 + 100 + 100 + 100 + 100 + 100 + 100 + 100 + 100 = 100 x 9
900
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NT
11
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15 tháng 1 2017
a) x + 100 = 50 + 60
x + 100 = 110
x = 110 - 100
x = 10
b) x + 50 = 30 + 60
x + 50 = 90
x = 90 - 50
x = 40
_______________________________________________THE END_____________________________________________________
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NT
10
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x : 50 = 100 + 50
x : 50 = 150
x = 150 x 50
x = 7500
x : 50 = 100 + 50
<=> x : 50 = 150
x = 150 x 50
x = 7500
nha bn