CÂU 1. (2,0 ĐIỂM) THỰC HIỆN PHÉP TÍNH  − +  A) 1 3 32 4

8 :

16 16 2 4

1 5 5 3

= + −

2 4 2 : 4

1 5 2 3

= + ⋅ −

2 4 5 4

1 1 3

2 2 4

1 3

= − 4

1

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