Question: Exercise 4.4
1
Copy and complete these divisions.
a
2.1
3 ) 6.414
b
1.8
5 ) 9.4385
c
0.8
8 ) 6.5128
d
1.
4 ) 5.1232
e
1.
7 ) 7.644
f
0.
9 ) 0.846
2
Work out:
a 8.654 \u00f7 2
b 8.922 \u00f7 6
c 32.925 \u00f7 5
d 58.912 \u00f7 8
3
Maggie pays $9.28 for 8 m of ribbon.
What is the cost of the ribbon, per metre?
1. **Problem:** Complete the divisions given.
2. **Formula:** Division is splitting a number (dividend) into equal parts defined by the divisor.
3. **Rules:**
- Divide step-by-step.
- Bring down digits as needed.
- Use decimal points carefully.
---
### Question 1a: Calculate $6.414 \div 3$
1. Divide 6 by 3 = 2.
2. Bring down 4: 0.4 \rightarrow 4 divided by 3 = 1 remainder 1.
3. Bring down 1: 11 divided by 3 = 3 remainder 2.
4. Bring down 4: 24 divided by 3 = 8.
Answer: $2.138$
---
### Question 1b: Calculate $9.4385 \div 5$
1. 9 divided by 5 = 1 remainder 4.
2. Bring down 4: 43 divided by 5 = 8 remainder 3.
3. Bring down 8: 38 divided by 5 = 7 remainder 3.
4. Bring down 5: 35 divided by 5 = 7.
Answer: $1.8877$
---
### Question 1c: Calculate $6.5128 \div 8$
1. 6 divided by 8 = 0 remainder 6.
2. Bring down 5: 65 divided by 8 = 8 remainder 1.
3. Bring down 1: 11 divided by 8 = 1 remainder 3.
4. Bring down 2: 32 divided by 8 = 4 remainder 0.
5. Bring down 8: 8 divided by 8 = 1.
Answer: $0.8141$
---
### Question 1d: Calculate $5.1232 \div 4$
1. 5 divided by 4 = 1 remainder 1.
2. Bring down 1: 12 divided by 4 = 3 remainder 0.
3. Bring down 2: 2 divided by 4 = 0 remainder 2.
4. Bring down 3: 23 divided by 4 = 5 remainder 3.
5. Bring down 2: 32 divided by 4 = 8.
Answer: $1.2808$
---
### Question 1e: Calculate $7.644 \div 7$
1. 7 divided by 7 = 1 remainder 0.
2. Bring down 6: 6 divided by 7 = 0 remainder 6.
3. Bring down 4: 64 divided by 7 = 9 remainder 1.
4. Bring down 4: 14 divided by 7 = 2.
Answer: $1.092$
---
### Question 1f: Calculate $0.846 \div 9$
1. 0 divided by 9 = 0 remainder 0.
2. Bring down 8: 8 divided by 9 = 0 remainder 8.
3. Bring down 4: 84 divided by 9 = 9 remainder 3.
4. Bring down 6: 36 divided by 9 = 4.
Answer: $0.094$
---
### Question 2a: Calculate $8.654 \div 2$
$8.654 \div 2 = 4.327$
---
### Question 2b: Calculate $8.922 \div 6$
$8.922 \div 6 = 1.487$
---
### Question 2c: Calculate $32.925 \div 5$
$32.925 \div 5 = 6.585$
---
### Question 2d: Calculate $58.912 \div 8$
$58.912 \div 8 = 7.364$
---
### Question 3: Cost per metre of ribbon
Given total cost $9.28$ for $8$ m,
Cost per metre = $\frac{9.28}{8} = 1.16$
Answer: $1.16$ per metre
---
**Summary:**
- Use long division stepwise.
- Bring down digits carefully.
- Use decimal points correctly.
- For cost per unit, divide total cost by quantity.