Math worksheet for practicing reading scales, including rulers, measuring jugs, and weighing scales, with questions on length, volume, and weight.

I will solve this worksheet by reading each scale carefully and providing the correct measurement with its unit.

Let's start with question 1.

First, look closely:
- Question 1 shows a ruler marked in millimeters (mm).
- The blue bar starts at 0 and ends between 40 and 50 mm.
- I need to count the small marks to get an exact reading. Each small mark represents 1 mm.
- The end of the bar is exactly on the 5th small mark after 40, so it's 45 mm.

I'll now move to question 2.

Next, find information:
I don't need external research for this; I can read the scales directly from the image.

Then, review the findings:
- For question 2, the ruler is also in mm.
- The blue bar starts at 0 and ends just past 60 mm.
- It ends on the 3rd small mark after 60, so it's 63 mm.

Now, let's examine questions 3, 4, and 5 which involve measuring liquid volume.

First, look closely:
- Questions 3, 4, and 5 show measuring jugs with markings in milliliters (ml).
- For question 3, the liquid level is halfway between 40 ml and 60 ml, which is 50 ml.
- For question 4, the liquid level is at the 20 ml mark.
- For question 5, the liquid level is halfway between 80 ml and 100 ml, which is 90 ml.

Moving on to questions 6 and 7, which are about length in centimeters.

First, look closely:
- Question 6 shows a ruler in cm.
- The blue bar starts at 0 and ends at the 5 cm mark.
- So, the length is 5 cm.
- Question 7 shows another ruler in cm.
- The blue bar starts at 0 and ends at the 4 cm mark.
- So, the length is 4 cm.

Finally, let's look at questions 8, 9, and 10, which involve weighing objects.

First, look closely:
- Questions 8, 9, and 10 show scales with a dial marked in grams (g).
- For question 8, the needle points to 70 g.
- For question 9, the needle points to 20 g.
- For question 10, the needle points to 50 g.

I have now analyzed all the questions and can provide the complete solution.

Solution:

1) How long? 45 mm
2) How long? 63 mm
3) How much? 50 ml
4) How much? 20 ml
5) How much? 90 ml
6) How long? 5 cm
7) How long? 4 cm
8) How heavy? 70 g
9) How heavy? 20 g
10) How heavy? 50 g

Each answer includes the correct numerical value and the appropriate unit of measurement as required by the worksheet instructions.