7 14 21 28 35 42 49 56 63 70
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first ten multiples of 11
replace 7 with x: x+2x=3x x+2x+3x=6x all ten of them -> 55x Put the 7 back in: 55(7)=385 OR: The first ten multiples of 7 are 7,14,21,28,35,42,49,56,63,70 The product of the multiples will then be 7+14+21+28+35+42+49+56+63+70= 385 :)
the multiples of 4 are 4,8,12,16,20,24,28,32,36,40,44,48,52,56,60 those are the multiples of 4
-the first 10 multiples of 20 are 20,40,60,80,100,120,140,160,180, and 200. :)
There are no multiples of ten.