1) 195-(2.3\(^3\) - 100 : 5\(^2\))
= 195-(2.27 - 100 : 25)
= 195-(54 - 4)
= 195-50
= 145
2) -47.43 + (-47).56 + (-47)
= -47.43 + (-47).56 + (-47).1
= -47.(43+56+1)
= -47.100
= -4700
1) Ta có: \(195-\left(2\cdot3^3-\frac{100}{5^2}\right)\)
\(=195-\left(54-4\right)=195-50=145\)
2) Ta có: \(-47\cdot43+\left(-47\right)\cdot56+\left(-47\right)\)
\(=-47\left(43+56+1\right)=-47\cdot100=-4700\)