Evaluate by using brackets 107 - 109

Evaluating using brackets 107 × 109 0ex0ex= ( 100 + 7 ) ×( 100 + 9 )0ex0ex= ( 100 + 7 ) × 100 + ( 100 + 7 ) × 90ex0ex= 100 × 100 + 7 × 100 + 100 × 9 + 7 × ...

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Standard VII

Mathematics

Pythagoras Theorem

Evaluate by u...

Question

Evaluate by using brackets $107 \times 109$

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Solution

Evaluating using brackets
$107 \times 109 = (100 + 7) \times (100 + 9) = (100 + 7) \times 100 + (100 + 7) \times 9 = 100 \times 100 + 7 \times 100 + 100 \times 9 + 7 \times 9 = 10000 + 700 + 900 + 63 = 11663$
Hence , the product is $11663$

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Evaluate by using brackets 107×109

Evaluating using brackets 107×109=100+7×100+9=100+7×100+100+7×9=100×100+7×100+100×9+7×9=10000+700+900+63=11663Hence , the product is 11663

Evaluate by using brackets $107 \times 109$

Evaluating using brackets
$107 \times 109 = (100 + 7) \times (100 + 9) = (100 + 7) \times 100 + (100 + 7) \times 9 = 100 \times 100 + 7 \times 100 + 100 \times 9 + 7 \times 9 = 10000 + 700 + 900 + 63 = 11663$
Hence , the product is $11663$