I. Find the sum of the following addenda:

(i) 43231 + 50712

(ii) 18541 + 75338

(iii) 60511 + 32024

(iv) 52693 + 43316

(v) 14205 + 44524 + 23752

(vi) 50891 + 23454 + 15679

(vii) 13022 + 32143 + 27587

(viii) 23921 + 42146 + 27438

(ix) 14567 + 23098 + 12873

(x) 43907 + 21609 + 95426

(xi) 92838 + 28352 +23875

(xii) 52809 + 24152 + 10474

II. Arrange in columns and find the sum:

Note: Arrange the digits of the addenda in columns and add as usual.

(i) 235786 + 421012 + 164320

(ii) 109832 + 590146 + 243281

(iii) 342019 + 452807 + 221573

(iv) 572480 + 125319 + 204590

(v) 243157 + 256311 + 540650

(vi) 246789 + 279874 + 200092

(vii) 125793 + 120530 + 420295

(viii) 175234 + 375206 + 753842

III. Fill in the blanks:

(i) 234563 + 123725 = 123725 + ……………..  =  ……………..

(ii) 354789 + …………….. = 0 + 354789 = ……………..

(iii) 121215 + 346780 + 123442 = 123442 + …………….. + 346780 = ……………..

(iv) 0 + …………….. = 347890 + 0 = ……………..

(v) 113307 + 143526 + 722431 = 722431 + …………….. + 143526 =  ……………..

I. (i) 93943

(ii) 93879

(iii) 92535

(iv) 96009

(v) 82481

(vi) 90024

(vii) 72752

(viii) 93505

(ix) 50538

(x)  160942

(xi) 145065

(xii) 87435

II. (i) 821118

(ii) 943259

(iii) 1016399

(iv) 902389

(v) 1040118

(vi) 726755

(vii) 666618

(viii) 1304282

III. (i) 234563, 358288

(ii) 0, 354789

(iii) 121215, 591437

(iv) 347890, 347890

(v) 113307, 979264

`