math

3.6 time 10^3 - 6.3 times 10^2 step by step

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$3.6 \times 10^3 - 6.3 \times 10^2\\ =3.6\cdot 10\cdot 10\cdot 10 -6.3\cdot 10\cdot 10\\ =3.6\cdot 1000- 6.3\cdot 100\\ =3.600\cdot 1000-6.30\cdot 100$

    Point three places to the right

                               Point two places to the right 

 =  $3\ 6\ \ 0\ 0-630=2970$

  -  $\underline{ _1\ 6_13\ 0}$

     $2\ 9\ \ 7\ 0$

$3.6 \times 10^3 - 6.3 \times 10^2=\color{blue}2970$

  !