Do the food sums. 1 carrot = 50 g, 1 lemon = 100 g, 1 mango = 200 g. Complete sums 1–4.

100 g + 200 g = 300 g

50 g + (100 g + 200 g) = 350 g

(50 g + 100 g + 200 g) + 50 g = 400 g

(50 g + 100 g + 200 g) + (2 × 50 g + 100 g + 200 g) = 800 g