Kiểm tra Số học lớp 6

KIỂM TRA SỐ HỌC LỚP 6

 Họ và tờn:.................................................

 Lớp: 6B

 Thời gian: 15 phỳt

Điểm:

Lời nhận xột của giỏo viờn:

ĐỀ SỐ 1:

 Câu 1. ( 6 điểm ): Áp dụng các tính chất của phép cộng, phộp trừ và phép nhân để tính nhanh:

 a, 81 + 243 + 19 b, 5 . 25 . 2 . 16 . 4 

 c, 32 .47 + 32 . 53 d, 997 + 37 

 e, 235.14 - 235.3 - 235 g, 1356. 12 - 1356. 2 

Cõu 2. ( 2 điểm): Tỡm số tự nhiờn x biết:

 a, 

 b, 

 Câu 3. ( 2điểm) Tính nhanh: 

 a, A = 26 + 27 + 28 + 29 + 30 + 31 +.+ 234

 b, B = 32 + 40+ 48+ .+ 800

Bài làm:

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