Question

find the product using suitable property (-65)×999+(-65)​

Answer 1

Answer:

(-65)×1000-1+(-65)

-65000-65-65

= -65130

Answer 2

Answer:

Take it as an example and do it yourself and the property that you have to used in your question is distributive property.​

Step-by-step explanation:

Find 15 x 68; 17 x 23; 69 x 78 +22 x 69 using  distributive property.​

15×68  = (10+5)×(70-2) 15×68  = (10+5)×(70-2)  = 10(70-2)+5(70-2)  = 700-20+350-10  = 680+340 = 1020

=17×23  = (10+7)×(20+3)  = 10(20+3)+7(20+3)  = 200+60+140+21

 = 391 =69(1×78+1×22)

 69(78+22) =  69(100)  = 6900

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