Comparing, multiplying by 10 and rounding

1 pack of sugar has 65 gr. How much sugar do we have in 10 packs?

Round 75 ml to the nearest 10

Round 83 gr to the nearest 10

A chocolate cake my auntie bought has 10 pieces. How many pieces are there if she bought 45 cakes?

350 gr + 50 gr ... 535 gr

Round 287 ml to the nearest 100

Round 423 gr to the nearest 100

150 ml + 100 ml ... 300 ml

150 ml ... 265 ml

350 gr ... 535 gr