A is the answer for number 6
Original-drank+added=result
orignail=stwabery+mango+watermelon
original=0.85+0.50+0.15=1.5liter
drank=0.3
orignail-drank=result
1.5-0.3=drank=1.2liter
A. see above
B. addition and subtraction facts
You must first attach the problems with your question.