Level 2
The capacity of a fish tank is 5 ℓ. ⁵₈ of the tank is filled with water. How much more water must be poured into the tank to fill it to its brim?

Level 2
³₇ of a tank is filled with petrol. There is space in the tank for another 24 ℓ of petrol. What is the capacity of the tank? Give the answer in ℓ.

Level 3
Roshel had some peaches and oranges in 2 baskets. In Basket A, the number of peaches to the number of oranges was in the ratio of 5 : 9. In Basket B, there were thrice as many peaches as oranges. After Roshel transferred ¹₃ of the oranges from Basket A to Basket B, the number of fruits left in Basket A was 187 and the ratio of the number of peaches to the number of oranges in Basket B became 7 : 8. How many fruits were in Basket B in the end?

Level 3
Helen spent $12 on a shirt. She spent ¹₅ of her remaining money on a blouse and a blazer, after which half her money was left.

1. What fraction of her money did she spend on the shirt?
2. The cost of the blazer is ¹₃ the cost of the blouse. How much more does the blouse cost than the blazer?

Level 3
Mr Tan's car was left with ¹₄ fuel. He added 28 ℓ of fuel to his car, it became ⁵₁₂ full. How much more fuel was needed to fill up Mr Tan's car?

Level 3
Erika spent ³₈ of her money on 6 notebooks and 10 post-it pads. The cost of one post-it pad was thrice the cost of one notebook. She bought some more post-it pads with ¹₄ of her remaining money. How many post-it pads did Erika buy altogether?

Level 3
Linda bought 8 packs of cards. There were 45 cards in each pack. After she had given 125 cards to Zandy, 23 to Ron and some to Phil, she had ²₉ of the cards left. How many cards did she give to Phil?

Level 3
A stall was selling flowers. ¹₃ of the earnings are from the sale of 9 lavenders and 17 sunflowers. Of the rest of the earnings, ³₄ are from the sale of lavenders and ¹₄ are from the sale of sunflowers. Each sunflower costs thrice as much as each lavender. How many flowers were sold?

Level 3
630 trees were planted in a plantation 3 months ago. 295 of them died. A fire later destroyed some more trees. If ¹₃ of the trees were left in the plantation, how many trees were destroyed by the fire?