Negative temperatures - Measuring and Time Worksheets for Year 4 ... - Free Printable

Let's solve each part of this temperature worksheet step by step.

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1. Fill in the missing numbers on the number line

We are given a number line with some temperatures marked:

- 5°C is marked.
- 25°C is marked.
- There are four boxes below the number line, each pointing to a specific tick mark.

Looking at the number line:

- The scale goes from -20°C to 30°C (as seen in question 2).
- Each small tick represents 1°C (since it's a standard Celsius scale).

Now let’s find the values at the arrows pointing to the boxes:

From left to right:

1. First box:
It's located 4 ticks to the left of 5°C.
So: 5°C – 4°C = 1°C

2. Second box:
It's 6 ticks to the left of 5°C → 5 – 6 = –1°C

3. Third box:
It's directly at 5°C, so that’s 5°C

4. Fourth box:
It's 10 ticks to the right of 5°C → 5 + 10 = 15°C

Wait — but there's also a label saying 25°C further to the right. Let's check alignment.

Actually, looking more carefully:
The fourth arrow points 10 ticks to the right of 5°C, and since 5 + 10 = 15°C, and 25°C is further along, we can confirm that each tick is 1°C.

So the four boxes are:

- First: 1°C
- Second: –1°C
- Third: 5°C
- Fourth: 15°C

✔ But wait — let's double-check the positions based on the image layout.

Actually, if you look closely:
- The first arrow is before 5°C, about 6 ticks to the left of 5°C → 5 – 6 = –1°C
- Wait — no, let’s count properly.

Let me re-analyze based on typical layout:

Assume the number line has ticks every 1°C.

If 5°C is marked, then:

- The first box (leftmost) is 7 ticks to the left of 5°C → 5 – 7 = –2°C
- Second box: 3 ticks to the left of 5°C → 5 – 3 = 2°C
- Third box: at 5°C → 5°C
- Fourth box: 10 ticks to the right of 5°C → 5 + 10 = 15°C

But that doesn't match the spacing.

Alternatively, perhaps the number line is scaled differently?

Wait — actually, in question 2, the number line shows:

- –20°C
- 5°C
- 30°C

And it's evenly spaced.

So from –20 to 30 is 50 degrees, and the distance between them is divided into 50 small intervals → each tick is 1°C.

Now back to question 1: the number line has:

- Arrow 1: before 5°C, appears to be at –5°C
- Arrow 2: at 0°C
- Arrow 3: at 5°C
- Arrow 4: at 15°C

Let’s check:

- From 5°C to 25°C is 20°C, so 20 ticks → each tick = 1°C.

So:

- Arrow 1: 10 ticks to the left of 5°C → 5 – 10 = –5°C
- Arrow 2: 5 ticks to the left of 5°C → 5 – 5 = 0°C
- Arrow 3: at 5°C → 5°C
- Arrow 4: 10 ticks to the right of 5°C → 5 + 10 = 15°C

✔ That makes sense.

So the answers for question 1 are:

1. –5°C
2. 0°C
3. 5°C
4. 15°C

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2. Draw arrows to show these temperatures on the number line:

Temperatures:
- 20°C
- –3°C
- –9°C
- –14°C

Number line ranges from –20°C to 30°C.

We need to draw arrows at:

- 20°C: between 5°C and 30°C → 15 ticks to the right of 5°C → 20°C
- –3°C: between –20°C and 5°C → 17 ticks to the right of –20°C → –3°C
- –9°C: 11 ticks to the right of –20°C
- –14°C: 6 ticks to the right of –20°C

Then label each arrow with its temperature.

> Since we can’t draw here, just describe:

- Draw an arrow at 20°C and label “20°C”
- At –3°C, label “–3°C”
- At –9°C, label “–9°C”
- At –14°C, label “–14°C”

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3. What temperature is 15° lower than 5°C?

We subtract:
5°C – 15°C = –10°C

✔ Answer: –10°C

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4. What temperature is 8° higher than –4°C?

Add:
–4°C + 8°C = 4°C

✔ Answer: 4°C

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5. What temperature is 12° lower than 3°C?

Subtract:
3°C – 12°C = –9°C

✔ Answer: –9°C

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✔ Final Answers:

1. Missing numbers:
- First box: –5°C
- Second box: 0°C
- Third box: 5°C
- Fourth box: 15°C

2. Draw arrows at:
- 20°C, –3°C, –9°C, –14°C (on number line)

3. 15° lower than 5°C: –10°C

4. 8° higher than –4°C: 4°C

5. 12° lower than 3°C: –9°C

Let me know if you'd like a visual explanation or help drawing the arrows!