\(45.37+95.45+55.61+69.55\)
\(=45.\left(37+95\right)+55.\left(61+69\right)\)
\(=45.132+55.130=13090\)
=45. (37+95)+55.(61+69)
=45.132+55.130
=5940+7150
=13090
k mình nha
45 . 37 + 95 . 45 + 55 . 61 + 69 . 55
= 45 ( 37 + 95 ) + 55 ( 61 + 69 )
= 45 . 132 + 55 . 130
= 130 ( 45 + 55 ) + 45 . 2
= 130 . 100 + 90
= 13 000 + 90
= 13 090
=))
Ta có: 45.37 + 95.45 + 55.61 + 69.55
= 45.(37 + 95) + 55.(69 + 61)
= 45.132 + 55.130
= 130.(45 + 55) + (2.45)
= 130.100 + 90
= 13000 + 90
=13090
Chúc bạn học tốt!!!
TheDarkOLM