Videos of Lenny
- Sums with 5 - addition facts lesson
by Lenny - Subtraction and addition in the same pictu...
by Lenny - Introduction to remainders in division (me...
by Lenny - Division terminology and dividing by zero
by Lenny - Mental math is easy: multiply 2-digit numb...
by Lenny - Area and perimeter problems - rectangular ...
by Lenny - Addition & subtraction facts with 8 - fact...
by Lenny - Adding three or four single-digit numbers ...
by Lenny - Floor plans and scale ratio - 7th grade math
by Lenny - Addition and Subtraction Facts with 6
by Lenny
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