Addition of 3-Digit numbers without Regrouping
We will learn Addition of 3-Digit Numbers without Regrouping.
We know how to do addition of 3-digit numbers without regrouping. Let us recall it solving some examples.
Solved Examples on Addition of 3-Digit Numbers without Regrouping:
Addition of Two 3-Digit Numbers
1. The shopkeeper has 153 packets of chocolate cookies and 124 butter cookies. How many cookies are there in all?
Solution:
To find out the total number of cookies, we will perform addition. Step 1: First add the ones. 3 + 4 = 7 Step 2: Next add the tens. 5 + 2 = 7 Step 3: Then, add the hundreds. 1 + 1 = 2
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Thus, there are 277 cookies in the shop.
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2. Add 641 and 325.
Solution:
Step 1: Arrange the numbers vertically. Step 2: First add the ones. 1 + 5 = 6 Step 3: Now, add the tens. 4 + 2 = 6 Lastly, add the hundreds. 6 + 3 = 9
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Thus, 641 + 325 = 966
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Addition of Three 3-Digit Numbers Without Regrouping:
We will add three 3-digit numbers in the same way as we add two 3-digit numbers.
For examples:
1. Add 542, 234 and 103. Solution: Step 1: Arrange the numbers vertically.
Step 2: First add the ones. 2 + 4 + 3 = 9 Step 3: Now, add the tens. 4 + 3 + 0 = 7 Step 4: Lastly, add the hundreds. 5 + 2 + 1 = 8
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Thus, 542 + 234 + 103 = 879
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Questions and Answers on Addition of 3-digit Numbers without Regrouping:
I. Add the following:
(i) 452 + 7
(ii) 238 + 61
(iii) 601 + 25
(iv) 758 + 31
(v) 604 + 33
(vi) 576 + 12
(vii) 934 + 40
(viii) 457 + 22
(ix) 460 + 506
(x) 251 + 238
(xi) 261 + 437
(xii) 384 + 112
(xiii) 708 + 191
(xiv) 348 + 321
(xv) 709 + 190
(xvi) 652 + 246
(xvii) 230 + 367
(xviii) 323 + 475
(xix) 832 + 131
(xx) 450 + 238
Answer:
I. (i) 459
(ii) 299
(iii) 626
(iv) 789
(v) 637
(vi) 588
(vii) 974
(viii) 479
(ix) 966
(x) 489
(xi) 698
(xii) 496
(xiii) 899
(xiv) 669
(xv) 899
(xvi) 898
(xvii) 597
(xviii) 798
(xix) 963
(xx) 688
II. Add the following and fill in the blanks:
(i) 503 + 6 = __________
(ii) 142 + 7 = __________
(iii) 674 + 23 = __________
(iv) 256 + 42 = __________
(v) 725 + 214 = __________
(vi) 345 + 153 = __________
(vii) 854 + 144 = __________
(viii) 615 + 212 = __________
(ix) 600 + 199 = __________
Answer:
II. (i) 503 + 6 = __________
(ii) 142 + 7 = __________
(iii) 674 + 23 = __________
(iv) 256 + 42 = __________
(v) 725 + 214 = __________
(vi) 345 + 153 = __________
(vii) 854 + 144 = __________
(viii) 615 + 212 = __________
(ix) 600 + 199 = __________
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