When you multiply two numbers, it does not matter which is first or second, the answer is always the same.
Example: 3×5=15, and 5×3=15
Another Example: 2×9=18, and 9×2=18
| In fact, it is like half of the table is a mirror image of the other! So, don't memorise both "3×5" and "5×3", just memorise that "a 3 and a 5 make 15" when multiplied. This is very important! It nearly cuts the whole job in half. |  |
In your mind you should think of so you should be thinking something like this:3 and 5 "together" making 15. |  |
0 comments:
Post a Comment