62975 – 24138 = 38837

39700 – 9216 = 30484

100000 – 9898 = 90102

89 : 999 = 89/999

80 : 968 = 80/968

950 : 5893 = 950/5893

1 sao nha kb nha

89/999=89/999

80/968=80/968

950/5893=950/5893

\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{548}\\{312}\end{array}}\\\hline{\,\,\,\,860}\end{array}\)                               \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{592}\\{234}\end{array}}\\\hline{\,\,\,826}\end{array}\)

\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{690}\\{\,\,\,89}\end{array}}\\\hline{\,\,\,779}\end{array}\)                               \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{427}\\{125}\end{array}}\\\hline{\,\,\,552}\end{array}\)

\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{35}\\{\,\,\,6}\end{array}}\\\hline{\,\,\,\,41}\end{array}\)                                       \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{47}\\{\,\,8}\end{array}}\\\hline{\,\,\,55}\end{array}\)

\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{89}\\{\,\,2}\end{array}}\\\hline{\,\,\,91}\end{array}\)                                       \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{63}\\{\,\,9}\end{array}}\\\hline{\,\,\,72}\end{array}\)

52 : 0,25 = 208

89 : 35,6 = 2,5

66 : 0,55 = 120

45 : 0,36 = 125

89- 4,375 = 84,625                           53,286 + 63,24 = 116,526

1.085 x 5,56 = 6,03260           225,48 : 1200 = 18,79