Rounding decimals to the nearest tenth worksheet with numbers and shapes to color.

Let's solve the problem step by step.

---

Part 1: Round each number to the nearest tenth

We need to round the following numbers to the nearest tenth (i.e., one decimal place).

To round to the nearest tenth:
- Look at the hundredths place (the second digit after the decimal).
- If it is 5 or greater, round up.
- If it is less than 5, round down.

#### Numbers to round:

1. 3.14
- Hundredths digit: 4 → less than 5 → round down
- 3.1

2. 3.85
- Hundredths digit: 5 → round up
- 3.9

3. 7.51
- Hundredths digit: 1 → less than 5 → round down
- 7.5

4. 8.16
- Hundredths digit: 6 → round up
- 8.2

5. 9.03
- Hundredths digit: 3 → less than 5 → round down
- 9.0

6. 3.65
- Hundredths digit: 5 → round up
- 3.7

✔ Answers for Part 1:
- 3.14 → 3.1
- 3.85 → 3.9
- 7.51 → 7.5
- 8.16 → 8.2
- 9.03 → 9.0
- 3.65 → 3.7

---

Part 2: Round the numbers in the shapes and color them

Now, look at each shape with a number and:
- Round it to the nearest tenth.
- If it rounds to 3.2, color red.
- If it rounds to 3.3, color blue.
- If it rounds to 3.0, color green.

Let’s go through each shape:

1. Triangle: 2.97
- Hundredths digit: 7 → round up
- 2.97 → 3.0 → ✔ Green

2. Square: 3.28
- Hundredths digit: 8 → round up
- 3.28 → 3.3 → ✔ Blue

3. Hexagon: 3.27
- Hundredths digit: 7 → round up
- 3.27 → 3.3 → ✔ Blue

4. Circle: 3.15
- Hundredths digit: 5 → round up
- 3.15 → 3.2 → ✔ Red

5. Octagon: 2.87
- Hundredths digit: 7 → round up
- 2.87 → 2.9 → ✘ Not 3.0, 3.2, or 3.3 → No color

6. Parallelogram: 3.13
- Hundredths digit: 3 → less than 5 → round down
- 3.13 → 3.1 → ✘ Not 3.0, 3.2, or 3.3 → No color

7. Oval: 3.07
- Hundredths digit: 7 → round up
- 3.07 → 3.1 → ✘ No color

8. Rectangle: 3.01
- Hundredths digit: 1 → round down
- 3.01 → 3.0 → ✔ Green

9. Star: 3.04
- Hundredths digit: 4 → round down
- 3.04 → 3.0 → ✔ Green

10. Diamond: 3.22
- Hundredths digit: 2 → less than 5 → round down
- 3.22 → 3.2 → ✔ Red

11. Square: 2.92
- Hundredths digit: 2 → round down
- 2.92 → 2.9 → ✘ No color

12. Rhombus: 3.24
- Hundredths digit: 4 → round down
- 3.24 → 3.2 → ✔ Red

---

✔ Final Coloring Instructions:

| Shape | Number | Rounded | Color |
|-------|--------|---------|-------|
| Triangle | 2.97 | 3.0 | Green |
| Square | 3.28 | 3.3 | Blue |
| Hexagon | 3.27 | 3.3 | Blue |
| Circle | 3.15 | 3.2 | Red |
| Octagon | 2.87 | 2.9 | ✘ No color |
| Parallelogram | 3.13 | 3.1 | ✘ No color |
| Oval | 3.07 | 3.1 | ✘ No color |
| Rectangle | 3.01 | 3.0 | Green |
| Star | 3.04 | 3.0 | Green |
| Diamond | 3.22 | 3.2 | Red |
| Square | 2.92 | 2.9 | ✘ No color |
| Rhombus | 3.24 | 3.2 | Red |

---

🔚 Summary of Answers:

#### Part 1: Rounding Numbers
- 3.14 → 3.1
- 3.85 → 3.9
- 7.51 → 7.5
- 8.16 → 8.2
- 9.03 → 9.0
- 3.65 → 3.7

#### Part 2: Shapes
- Color red: 3.15 (circle), 3.22 (diamond), 3.24 (rhombus)
- Color blue: 3.28 (square), 3.27 (hexagon)
- Color green: 2.97 (triangle), 3.01 (rectangle), 3.04 (star)
- No color: 2.87, 3.13, 3.07, 2.92

> ✔ Note: Only shapes rounding to 3.0, 3.2, or 3.3 are colored.

Let me know if you'd like a printable version or visual guide!