This Class 4 mathematics worksheet provides a variety of exercises on addition and subtraction, ranging from basic concepts to complex word problems.

Worksheet: Addition and Subtraction – Worksheet 2

#### 1. Fill in the blanks:

a) The numbers that are added are called addends.

b) \( 87412 + \_\_\_\_ = 87412 \)

- Any number added to 0 remains unchanged.
- Therefore, the missing number is 0.

c) 500 when subtracted from 5500 is equal to \_\_\_\_.

- Perform the subtraction: \( 5500 - 500 = 5000 \).
- The answer is 5000.

d) \( 5423 + 52 + 6231 = 6231 + \_\_\_\_ + 52 \).

- By the commutative property of addition, the order of the addends can be rearranged without changing the sum.
- The missing number is 5423.

e) The sum of an odd number and an even number is \_\_\_\_.

- The sum of an odd number and an even number is always odd.
- The answer is odd.

---

#### 2. Solve:

a) \( 54329 + 62897 = \_\_\_\_ \)

- Add the numbers:
\[
54329 + 62897 = 117226
\]
- The answer is 117226.

b) \( 85623 - 54236 = \_\_\_\_ \)

- Subtract the numbers:
\[
85623 - 54236 = 31387
\]
- The answer is 31387.

c) \( 4579 + 75489 = \_\_\_\_ \)

- Add the numbers:
\[
4579 + 75489 = 80068
\]
- The answer is 80068.

d) \( 7500 - 456 = \_\_\_\_ \)

- Subtract the numbers:
\[
7500 - 456 = 7044
\]
- The answer is 7044.

e) \( 753 + 456 + 896 = \_\_\_\_ \)

- Add the numbers step by step:
\[
753 + 456 = 1209
\]
\[
1209 + 896 = 2105
\]
- The answer is 2105.

---

#### 3. Find the missing digit:

a) \( 45\_\_67 + 2\_\_568 = 70235 \)

- Let the missing digits be \( x \) and \( y \). The equation becomes:
\[
45x67 + 2y568 = 70235
\]
- Start from the rightmost digit:
- Units place: \( 7 + 8 = 15 \) (write 5, carry 1).
- Tens place: \( 6 + 6 + 1 = 13 \) (write 3, carry 1).
- Hundreds place: \( x + 5 + 1 = 2 \) (write 2, so \( x = 6 \)).
- Thousands place: \( 5 + y = 0 \) (write 0, so \( y = 5 \)).
- Ten-thousands place: \( 4 + 2 = 7 \).

- The missing digits are \( x = 6 \) and \( y = 5 \).
- The answer is 6 and 5.

b) \( 5\_\_287 - 21\_\_97 = 3239\_\_ \)

- Let the missing digits be \( x \), \( y \), and \( z \). The equation becomes:
\[
5x287 - 21y97 = 3239z
\]
- Start from the rightmost digit:
- Units place: \( 7 - 7 = 0 \) (so \( z = 0 \)).
- Tens place: \( 8 - 9 \) requires borrowing, so \( 18 - 9 = 9 \).
- Hundreds place: \( 2 - y \) requires borrowing, so \( 12 - y = 3 \) (so \( y = 9 \)).
- Thousands place: \( x - 1 - 1 = 2 \) (so \( x = 4 \)).

- The missing digits are \( x = 4 \), \( y = 9 \), and \( z = 0 \).
- The answer is 4, 9, and 0.

c) \( 89\_\_01 - 2\_\_890 = 6731\_\_ \)

- Let the missing digits be \( x \), \( y \), and \( z \). The equation becomes:
\[
89x01 - 2y890 = 6731z
\]
- Start from the rightmost digit:
- Units place: \( 1 - 0 = 1 \) (so \( z = 1 \)).
- Tens place: \( 0 - 9 \) requires borrowing, so \( 10 - 9 = 1 \).
- Hundreds place: \( x - 8 \) requires borrowing, so \( 10 + x - 8 = 3 \) (so \( x = 1 \)).
- Thousands place: \( 9 - y - 1 = 7 \) (so \( y = 1 \)).

- The missing digits are \( x = 1 \), \( y = 1 \), and \( z = 1 \).
- The answer is 1, 1, and 1.

d) \( 4\_\_61 + 23\_\_1 = 687\_\_ \)

- Let the missing digits be \( x \), \( y \), and \( z \). The equation becomes:
\[
4x61 + 23y1 = 687z
\]
- Start from the rightmost digit:
- Units place: \( 1 + 1 = 2 \) (so \( z = 2 \)).
- Tens place: \( 6 + y = 7 \) (so \( y = 1 \)).
- Hundreds place: \( x + 3 = 8 \) (so \( x = 5 \)).

- The missing digits are \( x = 5 \), \( y = 1 \), and \( z = 2 \).
- The answer is 5, 1, and 2.

---

#### 4. When 54220 is subtracted from me, you get 21676. Who am I?

- Let the unknown number be \( x \). The equation is:
\[
x - 54220 = 21676
\]
- Solve for \( x \):
\[
x = 21676 + 54220 = 75896
\]
- The answer is 75896.

---

#### 5. Add me to a number or subtract me from a number. The number remains the same. Who am I?

- If adding or subtracting a number leaves the original number unchanged, that number must be 0.
- The answer is 0.

---

#### 6. In a puja festival, ₹75,800 was collected in the first week. ₹67509 was collected in the second week. How much more should be collected to make the total sum ₹2,00,000?

- Total collected so far:
\[
75800 + 67509 = 143309
\]
- Amount needed to reach ₹2,00,000:
\[
200000 - 143309 = 56691
\]
- The answer is ₹56,691.

---

#### 7. Rajeev has 4 boxes. He puts 12 apples in each box. There are 3 apples left outside. How many apples are there in all?

- Apples in the boxes:
\[
4 \times 12 = 48
\]
- Total apples:
\[
48 + 3 = 51
\]
- The answer is 51.

---

#### 8. Ritwik’s father is 32 years older than his son. Ritwik is 8 years old. How old is his father?

- Father's age:
\[
8 + 32 = 40
\]
- The answer is 40.

---

Final Answers:

1. a) addends
b) 0
c) 5000
d) 5423
e) odd

2. a) 117226
b) 31387
c) 80068
d) 7044
e) 2105

3. a) 6, 5
b) 4, 9, 0
c) 1, 1, 1
d) 5, 1, 2

4. 75896

5. 0

6. ₹56,691

7. 51

8. 40

Boxed Final Answer:
\[
\boxed{75896}
\]