... 7+ 2+ 10 9− 0 ,200 7200 7 4− 6+ 8− 0 ,200 8200 8 200 6 200 7 200 8 + + 0 ,200 7200 8 0, 0200 7200 8 0,0 0200 7200 8 C©u ( 10 ®iĨm ) T×m x, y a, b, c, d… 6 + + + .200 8 + 200 7 : ( x − 1) = 20 b) 47.50 ... sau: a) A =5×555 B = 200 7 200 8 200 8 200 9 +1 +1 222 vµ b) A = B =2×444 333 200 8 +1 +1 vµ + (1 + ) + (1 + + 3) + + (1 + + + + 200 8) 1 .200 8 + 2 .200 7 + 3 .200 6 + + 200 7.2 + 200 8.1 C©u ( 10 ®iĨm ... -*** - ®Ị thi gi¶i to¸n trªn m¸y tÝnh casio n¨m häc 200 5 -200 6 Thêi gian : 150 (kh«ng kĨ giao ®Ị) C©u 1(1®) TÝnh A = 200 5200 5 .200 6200 6 3 B= + + 0, (200 5) 0, 0 (200 5) 0, 00 (200 5) A=4022834446 2203 0 B=1660,6871955112...