John buys 3 puzzles.  The first puzzle has 1000 pieces.  The second and third puzzles have the same number of pieces and each has 50% more pieces.  How many total pieces are all the puzzles?
The second puzzle has 1000*.5=
<gadget id="calculator">1000*.5</gadget>
<output>500</output>
500 more pieces than the first.
So it has 1000+500=
<gadget id="calculator">1000+500</gadget>
<output>1_500</output>
1500 total pieces.
That means those two puzzles have 1500*2=
<gadget id="calculator">1500*2</gadget>
<output>3_000</output>
3000 pieces.
So in total there were 3000+1000=
<gadget id="calculator">3000+1000</gadget>
<output>4_000</output>
4000 pieces.

<result>4_000</result>