蜜芽传媒

Numbertime Addition and Subtraction, Patterns of Addition Clips

1. Adding near doubles - numbers more than 20

   Duration: 00:45

2. Adding near doubles - numbers less than 20

   Duration: 01:22

3. Adding near doubles - numbers less than 20

   Duration: 01:25

4. Adding near doubles

   Duration: 01:35

5. Using near doubling to solve real life problems

   Duration: 01:34

6. Adding near doubles - numbers more than 20

   Duration: 00:49