Question

1. write the volume of water in each of the following beakers.

find the total volume of water in the three beakers.
\boxed{} + \boxed{} + \boxed{} = \boxed{}
the total volume of water is \boxed{} ml.

Explanation:

Step1: Identify the volumes

From the beakers, the volumes are 300 ml, 400 ml, and 70 ml (assuming the third beaker's volume is 70 ml as per the handwritten note).

Step2: Add the volumes

We need to calculate \( 300 + 400 + 70 \). First, add 300 and 400: \( 300 + 400 = 700 \). Then add 70 to the result: \( 700 + 70 = 770 \).

Answer:

The total volume of water is \( 300 + 400 + 70 = 770 \) ml. So the boxes should be filled as 300, 400, 70, and 770. The total volume is \(\boxed{770}\) ml.