Practice the set of questions given in the worksheet on operation of addition. The questions are based on adding numbers to find the sum of the given numbers, addition using the properties and word problems on addition.

**1.** Add by counting forwards:

(i) 46 + 13 =

(ii) 28 + 18 =

(iii) 121 + 35 =

**2.** Find the sum of:

(i) 69 + 37 =

(ii) 98 + 9 =

(iii) 182 + 97 =

(iv) 161 + 49 =

(v) 412 + 502 =

(vi) 222 + 333 + 444 =

(vii) 9 + 11 + 96 =

(viii) 89 + 99 + 90 =

**3.** Add together:

(i) 57 and 77

(ii) 19 and 59

(iii) 208 and 407

(iv) 68 and 74

(v) 76 and 79

(vi) 293 and 309

(vii) 42 and 82 and 62

(viii) 29 and 35 and 66

(ix) 130 and 310 and 0

(x) 30 and 80 and 90

**4.** What is the sum if 0 is added to 90?

**5.** There were 109 coconuts and 367 guavas in a basket. How many fruits
were there in the basket?

**6.** Find the sum of 292, 173 and 318.

**7.** Find the total sum of 107, 129 and 63.

**8.** What is the sum if 300 is added to 505?

**9.** What is the sum if 773 is added to 0?

**10.** Find the sum if zero is added to one?

Answers for the worksheet on operation of addition are given below to check the exact answers of the above questions to find the sum.

**Answers:**

**1.** (i) 59

(ii) 46

(iii) 156

**2.** (i) 106

(ii) 107

(iii) 279

(iv) 210

(v) 914

(vi) 999

(vii) 116

(viii) 278

**3.** (i) 134

(ii) 78

(iii) 615

(iv) 142

(v) 155

(vi) 602

(vii) 186

(viii) 130

(ix) 440

(x) 200

**4.** 90

**5.** 476 fruits

**6.** 783

**7.** 299

**8.** 805

**9.** 773

**10.** 1

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