Question

please koi help kar do mari Q.no.2​

Answer 1

1st :-

105×106 = (100+5)(100+6)= 100×100 + 5×100 + 6×100 + 5×6= 10000 + 1100 +

* 30= 11,130*

2nd :-

103×98

03×98=(100+3)(100−2)

03×98=(100+3)(100−2)=10000−200+300−6

*10, 094*

3rd :-

97x98

=*9,506*

Answer 2

2. (i) 105 × 106

= (100 + 5) (100+6)

= 100(100) + 100(6) + 5(100) + 5(6)

= 10000 + 600 + 500 + 30

= 10000 + 1100 + 30

= 11130

(ii) 103 × 98

= (100 + 3) (100 - 2)

= 100(100) + 100(-2) + 3(100) + 3(-2)

= 10000 - 200 + 300 - 6

= 9800 + 294

= 10094

(iii) 97 × 98

= (90 + 7) (90 + 8)

= 90(90) + 90(8) + 7(90) + 7(8)

= 8100 + 720 + 630 + 56

= 8820 + 686

= 9506

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