1 TÍNH GIÁ TRỊ BIỂU THỨC
9900 : 36 - 15 X 11 9700 : 100 + 36 X12
[ 15792 :336 ] X 5 + 27 X11 [ 160 X 5 -25 X 4] : 4
1036 + 64 X 52 - 1827 215 X 86 + 215 X 14
29 150 - 136 X210
[ 6/11 + 5/11 ] X 3/7 3/5 X 7/9 - 3/5 X 2/9 [ 6/7 - 4/7] : 2/5
8/15 : 2/11 + 7/15 : 2/11 2/3 + 5/2 - 3/4 4/5 - 1/2 +1/3
2/5 X 1/2 : 1/3 1/2 X 1/3 + 1/4 2/9 : 2/9X1/2
7/9 X 3/14 : 5/8 2/7 : 2/3 - `1/7 5/12- 7/32: 21 / 16