In 3^{th} Grade Addition Worksheet we will solve how to addition of 3-digit
numbers without regrouping, addition of three 3-digit numbers without
regrouping, addition of 3-digit numbers with regrouping, addition of Three 3-digit
numbers with regrouping, properties of addition, estimating the sum and word
problems on 3-digit addition.

**1.** 600 + 100 = ………………

**2.** 111 + 222 = ………………

**3.** 416 + 532 = ……………… + 416

**4.** 304 + ……………… = 408 + 304

**5.** 347 + 0 = ………………

**6.** 247 + (123 + 51) = (……………… + 123) + 51

**7.** Successor of 299 is ………………

**8.** Predecessor of 301 is ………………

**9.** There are 200 brown rabbits and 50 white rabbits. How
many total rabbits are there in the jungle?

**10.** When zero is added to a number, the sum is ………………

**11.** There were 243 blue birds and 145 black birds in the
park. How many birds are there in the park?

**12. Write the numerals and then add:**

(i) Seven hundred fifty-five and one hundred sixty-six

(ii) Five hundred eighty, two hundred forty-four and one hundred seventeen

(iii) Two hundred twenty-five and one hundred ninety-seven

(iv) Three hundred sixteen, two hundred twenty-eight and two hundred forty-one

**13. Add the following numbers:**

(i) 267 + 32

(ii) 193 + 578

(iii) 245 + 500

(iv) 241 + 261

(v) 403 + 89

(vi) 298 + 567 + 132

**14. Add the following:**

(i) 198 + 461 + 100

(ii) 213 + 167 + 533

(iii) 521 + 124 + 104

(iv) 492 + 273 + 163

(v) 605 + 154 + 212

(vi) 226 + 30 + 135

(vii) 606 + 150 + 102

(viii) 156 + 203 + 411

**15. Solve the following word problems:**

(i) 233 people attended a meeting in State A and 746 people attended meeting in State B. How many people in total attended the meeting?

(ii) A Builder took 369 days to complete Building A, 213 days to complete Building B and 367 days to complete Building C. How many days a builder took to build all the three buildings?

(iii) In a garden, there are 416 green grapes on a grapevine, 209 apples on an apple tree and 327 mangoes on a mango tree. Calculate total number of fruits in the garden.

(iv) 273 boys took part in the Parade. 100 girls more than the boys took part in the parade. How many total number of children participated in the parade?

(v) 358 cold drink bottles were loaded on a truck. 603 more bottles were loaded next day. How many bottles were loaded in all?

(vi) Jane is reading a book. If she is on 287 page number and she has to read 154 pages more. How many pages are there in the book?

(vii) A cloth store sold 578 shirts and 397 trousers in the month of October. How many clothes were sold in all?

**Answer:**

**1.** 700

**2.** 333

**3.** 532

**4.** 408

**5.** 347

**6.** 247

**7.** 300

**8.** 300

**9.** 250

**10.** number itself

**11.** 388

**12.** (i) 921

(ii) 941

(iii) 422

(iv) 793

**13.** (i) 299

(ii) 771

(iii) 745

(iv) 502

(v) 492

(vi) 997

**14.** (i) 759

(ii) 973

(iii) 749

(iv) 928

(v) 971

(vi) 391

(vii) 858

(viii) 770

**15.** (i) 979

(ii) 949

(iii) 952

(iv) 646

(v) 961

(vi) 441

(vii) 975

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