Question

measuring mass in science often involves sums. you must think add and subtract to find the mass of the water in the beaker. to find the mass of the beaker and water. to find the mass of the water. calculation to find the mass of the beaker. calculation to find the total mass of beaker and water. subtract the mass of the beaker from the total mass. 210.0 g - 40.5 g water. add the grams on each beam. 40.5 g + 170.4 g

Explanation:

Step1: Find total mass

Add the grams on each beam.

Step2: Find mass of water

Subtract mass of beaker from total mass.

Step3: Find mass of beaker

If total mass and water mass are known, use total mass - water mass.

Step4: Calculate total mass

Add the values from the balance beams (e.g., if beams show 40.5 g and 170.4 g, add them).

Answer:

To find the mass of the beaker and water: Add the grams on each beam
To find the mass of the water: Subtract the mass of the beaker from the total mass
Calculation to find the mass of the beaker: Total mass - mass of water
Calculation to find the total mass of beaker and water: Add the grams on each beam (e.g., if beams show values like 40.5 g and 170.4 g, calculate 40.5 g + 170.4 g)