| https://www.quia.com/jg/78606.htmlFind value of digit in brackets | 
| https://www.quia.com/jg/78599.htmlSums of 11 and 12 | 
| https://www.quia.com/jg/80941.htmlDifferences of 11 and 12 | 
| https://www.quia.com/jg/80950.htmlSums of 13-18 | 
| https://www.quia.com/jg/82289.htmlSubtraction facts 13-18 | 
| https://www.quia.com/jg/86719.htmlAdd. & Sub using doubles and doubles +1 | 
| https://www.quia.com/jg/105527.htmlMultiplication 3 , 4, 5 | 
| https://www.quia.com/jg/117961.htmlMultiiiplication  6 7 8 | 
| https://www.quia.com/jg/122679.htmlDivision  6  7  8 | 
| https://www.quia.com/jg/136411.htmlDetermine and continue the pattern | 
| https://www.quia.com/jg/136413.htmlDivision 11, 12 | 
| https://www.quia.com/jg/277012.htmlDivision of 1-5 | 
| https://www.quia.com/jg/117966.htmlMultiplication 6-9 |