Gọi số thứ nhất là a
      số thứ hai là b
Ta có: a x b =72
          (a+3)x b =90
          =>a x b + 3b=90
         =>3b=90-72
=>3b=18  => b=6
                   => a=12

4

x

8x74x125=(8x125)x74=1000x74=74000

2\(\dfrac{3}{4}\)=2,75

3.My taste in art is diferent from her taste
4.Life in VietNam is not the same as life in Endland
5.We last went to the cinema for two months 
6.Because this soup is hot, i can't eat it now

51 trang

51 trang

B