Level 3
Ben had some flour. He used the same amount of flour each day. By the end of Day 5, he had 590 g of flour left. At the end of Day 6, he had 540 g of flour left. How much flour did Ben have at first?
Level 3
Mr and Mrs Jones took their 5 friends to a movie theater. 1 of their friends brought 2 children. How much did they pay for their entrance fee tickets?
Level 2
Mrs Lim bought three bottles of orange juice. Each bottle is 2 ℓ. Her family drank 3 ℓ of the orange juice. What is the volume of orange juice left?
Level 3
There were some boys and girls in a classroom. 6 boys left and now, there are twice as many boys as girls in the room. If there are only 8 girls, how many boys were in the classroom at first?