97 x 13 + 130 x 0,3
= 97 x 13 + 13 x 3
= 13 x (97 + 3)
= 13 x 100 = 1300
\(97\times13+130\times0.3\)
\(=97\times13+13\times10\times0.3\)
\(=97\times13+13\times30\)
\(=13\times\left(97+30\right)\)
\(=13\times127\)
\(=1651\)
Sorry nha, mình nhân nhầm nên sửa lại nè
\(97\times13+130\times0.3\)
\(=97\times13+13\times10\times0.3\)
\(=97\times13+13\times3\)
\(=13\times\left(97+3\right)\)
\(=13\times100\)
\(=1300\)