1.Find the product using properties of multiplication
(i) 584 × 99 + 584 × 1
(ii) 72× 64+72 ×30 +72 ×6
2. Using properties of addition and multiplication find the product of
(i) 785 × 104
(ii) 86 × 205
Answers
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Step-by-step explanation:
584×(99+1)= 584×100
58400
72×(64+30+6)= 72×100=7200
785×(100+4)=785×100+785×4
= 78500+3140
= 81640
85×205
=205×(100-15)
=205×100-205×15
=20500-3075
=17425
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