Math is used everywhere, and it is an important part of your life. You use math
when you are playing games, cooking food, spending money, telling time, reading
music, and doing any other activity that involves numbers. Even finding
a television station uses math!
Subtraction Is Everywhere
You use subtraction all the time and probably never think about it. Every time
you find the difference between two values, you are subtracting. When you find
how long it took you to do something, you are subtracting time values. When you
buy something and receive change, you are subtracting money values. When you
have a certain amount of homework to do, and finish part of the problems, you
use subtraction to figure out how many you still have left to do.

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