Year 4 Numeracy worksheet on negative numbers, including a temperature chart and ordering temperatures.

Let’s solve each part of the worksheet step by step.

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1) Complete the temperature chart:

We are given a starting temperature on Tuesday, a change (which can be positive or negative), and we need to calculate the temperature on Wednesday.

> Rule: Wednesday = Tuesday + Change

Let’s do each row:

- Row 1:
Tuesday = 4°C, Change = +3°C
→ Wednesday = 4 + 3 = 7°C

- Row 2:
Tuesday = 6°C, Change = -5°C
→ Wednesday = 6 + (-5) = 1°C

- Row 3:
Tuesday = 2°C, Change = -2°C
→ Wednesday = 2 + (-2) = 0°C

- Row 4:
Tuesday = -1°C, Change = +5°C
→ Wednesday = -1 + 5 = 4°C

✔ Completed Chart:

| Tuesday | Change | Wednesday |
|---------|--------|---------|
| 4°C | +3°C | 7°C |
| 6°C | -5°C | 1°C |
| 2°C | -2°C | 0°C |
| -1°C | +5°C | 4°C |

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2) Put the following temperatures in order starting with the coolest:

Temperatures:
3°C, 10°C, -1°C, 4°C, -2°C

> Coolest = lowest number (most negative)
> So we order from smallest to largest.

Step-by-step:

- The coldest is -2°C (most negative)
- Then -1°C
- Then 3°C
- Then 4°C
- Then 10°C (warmest)

✔ Ordered list (coolest to warmest):
-2°C, -1°C, 3°C, 4°C, 10°C

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3) Put the following temperatures in order starting with the coolest:

Temperatures:
-1°C, 12°C, -5°C, 9°C, 2°C

Again, order from lowest (coolest) to highest (warmest).

Step-by-step:

- Coldest: -5°C
- Next: -1°C
- Then: 2°C
- Then: 9°C
- Warmest: 12°C

✔ Ordered list (coolest to warmest):
-5°C, -1°C, 2°C, 9°C, 12°C

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✔ Final Answers:

1) Wednesday Temperatures:
7°C, 1°C, 0°C, 4°C

2) Ordered Temperatures:
-2°C, -1°C, 3°C, 4°C, 10°C

3) Ordered Temperatures:
-5°C, -1°C, 2°C, 9°C, 12°C

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This worksheet helps students practice:
- Adding and subtracting integers (positive/negative numbers) in context of temperature.
- Ordering integers from least to greatest (coolest to warmest).

Great job practicing negative numbers! 🌡️🔢