One way to do this is to write 19(6)=(20-1)6=20(6)-1(6) and since it is easy to multiply 20 times 6 (=120) and 6 (-1) (=-6), we are left with
120-6 which is relatively easy to calculate in our head
120-6=114.
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An expression equal to 15 + 35, using distributive property, is 5(3 + 7). Under distributive property, 5*3=15 and 5*7=35.
u cant
57 times 12 equals 684. You can find this by multiplying the two numbers directly or using the distributive property.
The property used to rewrite 9x2 + 9x3 is the Distributive Property. Using the Distributive Property the expression can be rewritten as 9x2 + 9x2 + 9x2 or 27x2.