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B. Solve the given problems. Follow the step in solving the problem (5 points each)
1. Maria filled the container with 3.5 liters of water. Her mother used 0.75 liters of water for cooking and 1.5 liters for palamig. How much water was left in the container?
2. Lourdes bought 13 m of yellow ribbon, 2.5 m of red, 75 m for white and 1.5 m of blue. How many meters of ribbon did she buy altogether?
3. Mr. Santos' class travelled 4.5 miles to the first observatory. The next closest observatory in 12 times far. How far is the second observatory to the first?
