Kiểm tra 1 tiết Số học 6 tiết 93

Tiết 93: Kiểm tra 1 tiết
Họ và tờn : ........................................................... .Lớp 6A
Điểm
Lời phờ của thầy, cụ giỏo
Đề bài : 
Câu 1: ( 3 đ ) Tính 
	a) 	 b) 	c) 	 d) 
Câu 2: ( 2 đ) Tính một cách hợp lí
	A = + ( + ) B = ( + 0,75 + ) : -2
Câu 3: ( 3 đ ) Tìm x, biết
	a) 	b) 
Câu 4: ( 2đ ) Cho phân số : 
 a) Tìm n Z để A cú giỏ trị là một số nguyờn .
 b) Tìm n Z để A đạt giá trị lớn nhất .
Bài làm : 
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