Bosigo jo bo fetileng Rick o bolaile diphiri di le lesome le ditau di le 15 fa a ne a tsoma. Gompieno Rick o bolaile diphiri tse dintsi go menagane gararo palo ya ditau, mme a bolaya ditau tse di kwa tlase ka di le tharo go na le tsa maabane. Ke diphologolo di le kae tse Rick a di bolaileng? 

Travis had 61 apps on his tablet. He deleted 9 apps he didn't use anymore and downloaded 18 more. How many apps are on his tablet now?
Palo yotlhe ya diphologolo tse Rick a di bolaileng maabane fa a tsoma ke 15+10 = <<15+10=25>>25
Gompieno, Rick o bolaile ditau tse di kwa tlase ka di le tharo go na le tsa maabane, palogotlhe ya ditau ke 15-3 = <<15-3=12>>12.
E bile o bolaile diphiri tse dintsi go menagane gararo palo ya ditau gompieno, palogotlhe ke 3*12 = <<3*12=36>>36 diphiri.
Fa di kopane, letsomo la gagwe la gompieno le mo neetse diphologolo di le 36+12 = <<36+12=48>>48.
Fa a kopane diphologolo tsotlhe, o na le 48+25 = <<48+25=73>>73 go tswa mo letsomaneng.
#### 73

Travis had 61 - 9 = <<61-9=52>>52 apps after deleting the ones he didn't use.
After downloading some more he now has 52 + 18 = <<52+18=70>>70 apps on his tablet.
#### 70