Answer:
Estimated value = 45
Explanation:
Dividend = 430
Rounding off the dividend to nearest multiple of 50 = 450
Divisor = 9
Rounding off the divisor to nearest multiple of 10 = 10
Dividing the rounded off dividend by the rounded off divisor, we get the quotient as
![\[(450)/(10)\]](https://img.qammunity.org/2020/formulas/mathematics/high-school/w5vdubj6eu1xqis22e7eqlvyf32noo4xjz.png)
This is a simple division compared to the original problem and the qiotient turns out to be 45. Note that this is just an estimation of the actual value which can be computed to be 47.7.