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By arranging in suitable order, find sum and product. 

(i) 43 + 67 

(ii) 81 × 93

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(i) 43 + 67 = (40 + 3) + (60 + 7) = (40 + 60) + (3 + 7) = 100 + 10 = 110 

(ii) 81 × 93 = 81 × (100 – 7) = 81 × 100 – 81 × 7 = 8100 – 567 = 7533

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