Let's solve each of these addition and subtraction problems involving meters (m) and centimeters (cm). We'll go step by step, remembering:
- 1 meter = 100 centimeters
- When adding or subtracting, we handle cm first. If the sum of cm exceeds 100, we convert the excess into meters.
- When subtracting, if the cm in the minuend is less than the cm in the subtrahend, we borrow 1 meter (which is 100 cm) from the meter column.
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1)
```
2 m 45 cm
+ 1 m 18 cm
-----------
```
Add cm: 45 + 18 = 63 cm
Add m: 2 + 1 = 3 m
Answer: 3 m 63 cm
---
2)
```
4 m 15 cm
+ 1 m 76 cm
-----------
```
Add cm: 15 + 76 = 91 cm
Add m: 4 + 1 = 5 m
Answer: 5 m 91 cm
---
3)
```
5 m 57 cm
+ 2 m 29 cm
-----------
```
Add cm: 57 + 29 = 86 cm
Add m: 5 + 2 = 7 m
Answer: 7 m 86 cm
---
4)
```
2 m 43 cm
+ 3 m 37 cm
-----------
```
Add cm: 43 + 37 = 80 cm
Add m: 2 + 3 = 5 m
Answer: 5 m 80 cm
---
5)
```
5 m 38 cm
+ 4 m 72 cm
-----------
```
Add cm: 38 + 72 = 110 cm → 110 cm = 1 m 10 cm
Add m: 5 + 4 = 9 m
Now add extra 1 m from cm: 9 + 1 = 10 m
Remaining cm: 10 cm
Answer: 10 m 10 cm
---
6)
```
6 m 75 cm
+ 4 m 36 cm
-----------
```
Add cm: 75 + 36 = 111 cm → 111 cm = 1 m 11 cm
Add m: 6 + 4 = 10 m
Add extra 1 m: 10 + 1 = 11 m
Remaining cm: 11 cm
Answer: 11 m 11 cm
---
7)
```
2 m 76 cm
- 1 m 34 cm
-----------
```
Subtract cm: 76 - 34 = 42 cm
Subtract m: 2 - 1 = 1 m
Answer: 1 m 42 cm
---
8)
```
5 m 45 cm
- 3 m 16 cm
-----------
```
Subtract cm: 45 - 16 = 29 cm
Subtract m: 5 - 3 = 2 m
Answer: 2 m 29 cm
---
9)
```
9 m 73 cm
- 4 m 52 cm
-----------
```
Subtract cm: 73 - 52 = 21 cm
Subtract m: 9 - 4 = 5 m
Answer: 5 m 21 cm
---
10)
```
7 m 15 cm
- 2 m 27 cm
-----------
```
Here, 15 cm < 27 cm → need to borrow 1 m = 100 cm
So, 7 m 15 cm = 6 m 115 cm
Now subtract:
cm: 115 - 27 = 88 cm
m: 6 - 2 = 4 m
Answer: 4 m 88 cm
---
11)
```
11 m 58 cm
+ 7 m 83 cm
-----------
```
Add cm: 58 + 83 = 141 cm → 141 cm = 1 m 41 cm
Add m: 11 + 7 = 18 m
Add extra 1 m: 18 + 1 = 19 m
Remaining cm: 41 cm
Answer: 19 m 41 cm
---
12)
```
6 m 75 cm
- 4 m 36 cm
-----------
```
Subtract cm: 75 - 36 = 39 cm
Subtract m: 6 - 4 = 2 m
Answer: 2 m 39 cm
---
✔ Final Answers:
| Problem | Answer |
|--------|--------|
| 1) | 3 m 63 cm |
| 2) | 5 m 91 cm |
| 3) | 7 m 86 cm |
| 4) | 5 m 80 cm |
| 5) | 10 m 10 cm |
| 6) | 11 m 11 cm |
| 7) | 1 m 42 cm |
| 8) | 2 m 29 cm |
| 9) | 5 m 21 cm |
| 10) | 4 m 88 cm |
| 11) | 19 m 41 cm |
| 12) | 2 m 39 cm |
Let me know if you'd like a printable version or explanation in Tamil!
Parent Tip: Review the logic above to help your child master the concept of addition length worksheet.
