Worksheet on fundamental operations will help us to practice the questions on four fundamental operations i.e. addition, subtraction, multiplication and division.

**1. Add the following:**

(i) 35 + 43 =

(ii) 8 + 4 + 6 =

(iii) 96 + 69 =

(iv) 38 + 81 + 73 =

(v) 239 + 487 =

(vi) 315 + 174 + 33 =

**2. Subtract the following:**

(i) 69 – 35 =

(ii) 383 – 198 =

**3. Find two subtraction facts for the following addition
facts:**

(i) 48 + 16 = 64

(ii) 70 + 14 = 84

**4. Fill in the blanks:**

(i) 97 - ____ = 35

(ii) 28 + ____ = 40

**5. Find two addition facts for the following subtraction
facts:**

(i) 80 – 30 = 50

(ii) 245 – 124 = 121

**6. Simplify:**

(i) 26 + 32 – 12 =

(ii) 75 + 25 – 30 =

(iii) 329 + 574 =

(iv) 370 – 259 =

**7.** In a school there are 539 students of whom 329 students
are girls. Find the number of boys.

**8.** In a collection of fruits there are 57 apples, 46 mangoes
and 23 oranges. How many fruits are there in the collection?

**9.** Write in multiplication form: 14 + 14 + 14 + 14 + 14

**10.** Multiply the following:

(i) 31 × 3 =

(ii) 53 × 8 =

**11.** There are 7 days in a week. How many days are there in
52 weeks?

**12.** How many weeks are there in 42 days if seven days make a
week?

**13.** Find two division facts for the
multiplication facts: 7 × 6 = 42

**14.** Find two multiplication facts
for the division facts: 40 ÷ 8 = 5

**15.** Divide the following:

(i) 0 ÷ 10 =

(ii) 63 ÷ 7 =

Answers for the worksheet on fundamental operations are given below to check the exact answers of the above questions on addition, subtraction, multiplication and division.

**Answers:**

**1.** (i) 78

(ii) 18

(iii) 165

(iv) 192

(v) 726

(vi) 522

**2.** (i) 34

(ii) 185

**3.** (i) 64 – 48 = 16, 64 – 16 = 48

(ii) 84 – 70 = 14, 84 – 14 = 70

**4.** (i) 62

(ii) 12

**5.** (i) 50 + 30 = 80, 30 + 50 = 80

(ii) 121 + 124 = 245, 124 + 121 = 245

**6.** (i) 46

(ii) 70

(iii) 903

(iv) 111

**7.** 210 boys.

**8.** 126 fruits

**9.** 14 × 5 = 70

**10.** (i) 93

(ii) 424

**11.** 364 days

**12.** 6 weeks

**13.** 42 ÷ 6 = 7, 42 ÷ 7 = 6

**14.** 5 × 8 = 40, 8 × 5 = 40

**15.** (i) 0

(ii) 9

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