Level 3
Ming Huat had 255 watermelons and 240 oranges at first. He used 35 of the watermelons and 34 of the oranges. He then bought some more oranges. In the end, 18 of the fruits he had left were watermelons. How many oranges did he buy?
Level 2
Amanda needs 45 m of cloth to sew a skirt. She needs 6 m of cloth to sew 2 skirts and a dress. How much cloth will she need to sew one dress? (Give your answer in m.)
Level 3 Siti had some stickers at first. She gave 29 of her stickers to her brother and 16 of her stickers to her best friend. After that, her mother gave her another 10 stickers. She had 87 stickers in the end. How many stickers did Siti have at first?
