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SlowZasob
We can round 225.45 and 90.32 to the nearest whole number (which will be 225 and 90) and then just add them:

225 + 90 = 315

Answer B

I hope it will help you ;)
iGreen
225.45 + 90.32 = 315.77

315.77 rounds to 316 because 7 is greater than 5.