There are 427 red roses and 318 yellow roses. How many roses are there in total?

The correct option is D 745
Number of red roses = 427
Number of yellow roses = 318
Total number of roses $=427+318$
Using the HTO table for decomposition:


$700+30+15$
$=700+30+10+5$
$=700+40+5=745$

So, there are 745 roses in total.