On Sunday, Sheldon bought 4 ½ kg of plant food. He used 1 ⅔ kg on his strawberry plants and used ¼ kg for his tomato plants. How many kilograms of plant food did Sheldon have left? *

Sheldon wants to feed his strawberry plants 2 more times and his tomato plants one more time. He will use the same amounts of plant food as before. How much plant food will he need *

Does he have enough left to do so?