My math.random() is not working it keeps giving out more then one number! Why is that?

plr.PlayerGui.WellScreen.BackroundRound.Backround.YesButton.MouseButton1Click:Connect(function()
				local RNumb = math.random(-1050,1000)
				plr.PlayerGui.WellScreen.Enabled = false
				
				TimesUsed = TimesUsed + 1
				plr.leaderstats.Coins.Value = plr.leaderstats.Coins.Value - 1
				print(RNumb)
				plr.leaderstats.Coins.Value = plr.leaderstats.Coins.Value + RNumb
				
				if(RNumb > 0)then
					plr.PlayerGui.WellWinnerOrLoser.Enabled = true
					plr.PlayerGui.WellWinnerOrLoser.BackroundRound.Winner.Visible = true
					wait(2.5)
					plr.PlayerGui.WellWinnerOrLoser.Enabled = false
					plr.PlayerGui.WellWinnerOrLoser.BackroundRound.Winner.Visible = false
	
				elseif(RNumb < 0)then
					plr.PlayerGui.WellWinnerOrLoser.Enabled = true
					plr.PlayerGui.WellWinnerOrLoser.BackroundRound.Loser.Visible = true
					wait(2.5)
					plr.PlayerGui.WellWinnerOrLoser.Enabled = false
					plr.PlayerGui.WellWinnerOrLoser.BackroundRound.Loser.Visible = false
				end