Kiểm tra chương II môn: Số học khối 6

Họ và tờn:	KIấ̉M TRA CHƯƠNG II
Lớp 6:.	MễN: Sễ́ HỌC
	THỜI GIAN: 45 phút
Điờ̉m 
Lời phờ
Đấ̀
 Cõu 1: Thực hiện cỏc phộp tớnh mụ̣t cách hợp lí:
 a) 127 – 13.(5 + 2) 	b) [(– 6) + (–7)] + (–10) 
c) 25 . 72 + 25 . 21 – 49 . 25	d) 271 – [(– 43) + 271 – (– 17)] 
 Cõu 2: a) Tỡm tất cả cỏc ước của 6; b) Tỡm 5 sụ́ là bội khỏc 0 của -5.
 Cõu 3: Tỡm số nguyờn x, biết:
	a) x + 10 = – 4 ; 	b) 5x – 12 = 28 	c) 15x = – 75 	 d) 2 .ùx - 1ù – 3 = 25
BÀI LÀM
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