John finished a bicycle race in second place. The first four people crossed the finish line at: one-twenty, a quarter after one, five minutes to one and 1:07. What time did John cross the finish line? Six word problems.
By 10, by 9, by 5, by 3, and by chunks. This unit contains tricks for multiplication and for checking your work. A playful (and very useful) approach to multiplication. This unit is presented at three levels of varying complexity.