Becky, Jake le Silvia ba ne ba ja di pizza di le 4. Pizza nngwe le nngwe e ne e na le dikarolwana di le 8. Becky o jele dikarolwana di le 3 go feta Jake. Silvia o jele dikarolwana tse di gapileng tsa ga Jake gabedi. Fa Becky a jele dikarolwana di le 10, ba jele dikarolwana di le kae kaofela? 

Leo collects stickers. Two years ago, he had 100 stickers in his collection. Last year, Leo collected 50 stickers. This year, he collected twice the number of stickers as the previous year. How many stickers does Leo have in his collection?
Jake o jele 10-3 = <<10-3=7>>7 dikarolwana tsa pizza.
Silvia o jele 7*2 = <<7*2=14>>14 dikarolwana tsa pizza.
Jake, Silvia le Becky ba jele 10+7+14 = <<10+7+14=31>>31 dikarolwana kaofela.
#### 31

Last year, Leo had 100 +50 = <<100+50=150>>150.
This year, he collected 2 x 50 = <<2*50=100>>100.
Therefore, Leo had 150 + 100 = <<150+100=250>>250 stickers in his collection.
#### 250