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Please help.     90x9 and 6x14.

 Jan 7, 2021
 #1
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90*9=9*9*10=81*10=810

6*14=6*2*7=12*7=84

 Jan 7, 2021
 #2
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Okay so 90x9 equals to 810. Here is how I did it...

(90x10)-(90x1)=900-90=810

 

6x14 equals to 84. The steps are here...

(5x14)+(1x14)=70+14=84

 

Hope this helps : )

 Jan 8, 2021

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