Convert 6400 millilitres to litres. Then, add 1750 millilitres to the result. Answer in litres.

Convert 875 millilitres to litres. Then, subtract 0.5 litres from the result.

Convert 4500 millilitres to litres. Then, subtract 0.75 litres from the result.

Convert 3500 kilolitres to megalitres. Then, add 1.5 megalitres to the result.

Convert 15000 millilitres to kilolitres. Add 0.15 kilolitres to the result.

Solve: 80.93 - 68.3

Jim earned $22.50 on Monday, $14.75 on Tuesday, and $28 on Wednesday. How much did he earn, in all?

  13.23 - 10.1=

Lia and James went to the movies. The tickets are $12.50 each.  Lia bought popcorn and a slushy for $9.65 together. James bought a slushy and nachos $15.30 together. How much money did they spend total?

Sarai has been working to buy a new pair of shoes. So far, she has earned $33 by babysitting, $49.75 selling her old toys, and $27.50 selling lemonade. If she needs $100 for the new shoes, how much money does she have left over?