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Find out the multiplication by using proper property. 

(i) 185 × 106 

(ii) 208 × 185 

(iii) 54 × 102 

(iv) 158 × 1008

1 Answer

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Best answer

Solving by distribution method of multiplication on addition— 

(i) 185 × 106 = 185 × (100 + 6)

= 185 × 100 +185 × 6 = 18500 +1110 = 19610 

(ii) 208 × 185 = 185 × 208 = 185 × (200 + 8) 

= 185 × 200 + 185 × 8 = 37000 + 1480 = 38480 

(iii) 54 × 102 = 54 × (100 + 2) 

= 54 × 100 + 54 × 2 = 5400 + 108 = 5508 

(iv) 158 × 1008 = 158 × (1000 + 8) 

= 158 × 1000 + 158 × 8 = 158000 + 1264 = 159264

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