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:
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................
..........................................................................................................................................................................................................................................................................................................................................................................