b) 237 g – 50 g + 353 g = …… g     450 ml + 90 ml – 65 ml = …… ml

b) 237 g – 50 g + 353 g = 540 g

    450 ml + 90 ml – 65 ml = 475 ml

    95 mm – 37 mm + 9 mm = 67 mm