\(2022\cdot99+2022=2022\left(99+1\right)=2022\cdot100=202200\)
\(135\cdot3^3+5\left(3^3\cdot4-3^4\right)\)
\(=135\cdot3^3+5\cdot3^3\cdot4-5\cdot3^4\)
\(=3^3\cdot\left(135+5\cdot4-5\cdot3\right)=3^3\cdot140=1260\)
1. Tính nhanh :
2022 . 99 + 2022
= 2022 . (99 + 1)
= 2022 . 100
= 202200
2. Thực hiện phép tính :
135 . 33 + 5 . ( 33. 4 - 34 )
= 135 . 27 + 5 . ( 27 . 4 - 81 )
= 3645 + 5 . ( 108 - 81 )
= 3645 + 5 . 27
= 3645 + 135
= 3780