\(5.4^2-18-3^2\)
\(=5.16-18-9\)
\(=80-18-9\)
\(=53\)
5 . 42 - 18 - 32
= 5 . 16 - 18 - 9
= 80 - 18 - 9
= 62 - 9
= 53
5.4^2 - 18 - 3^2
= 5. (4.4) - 18 - (3.3)
= 5.16 - 18-9
= 80-18-9
= 53
5 . 42 - 18 - 32
= 5 . 4 .4 - 18 - 3 . 3
= 20 . 4 - 18 - 9
= 80 - 9
= 71
5.\(4^2\)-18-\(3^2\)
=5.16-18-9
=80-18-9
=62-9
=53
\(5.4^2-18-3^2\)
\(=5.16-18-9\)
\(=80-18-9\)
\(=53\)
5\(\times\)42\(-\)18\(\times\)32
=5\(\times\)16\(-\)18\(-\)9
=80\(-\)16\(-\)9
=64\(-\)9
=53
\(5.4^2-18-3^2\)
\(=5.16-18-9\)
\(=80-27\)
\(=53\)
\(5.4^2-18-3^2\)
\(=\)\(5.16-18-9\)
\(=80-18-9\)
\(=62-9\)
\(=53\)
\(Học\) \(vui\) \(!\)
^^
5x4^2-18-3^2
=5x16-18-9
=80-18-9
=62-9
=53
5 . 42 - 18 - 32
= 5 . 16 - 18 - 9
= 80 - 18 - 9
= 62 - 9
= 53
