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In math what are counters?
Counters are for doing math. You use them to count. Pretend you have a math question like this: 10 - 5 = . So you get 10 counters and take away 5 and see how many you get.
Why do you use subtraction when you add a positive integer and a negative integer?
Because adding a negative is the same as subtracting a positive. In other words, minus a plus is he same as plus a minus. For example 5+ (-3) = 5-3 = +2 5 -(+3) = 5-3 = +2 Remember minus a plus = = minus plus a minus = minus plus a plus = plus minus a minus = plus
How using addition properties can make adding easier?
So you don't have to use mental math or fingers
When factoring a trinomial that is in the format ax2 plus bx plus c?
Use the quadratic equation: x = [-b +- sqrt(b^2-4ac)]/2a The +- means you get two answers, one by adding, one by subtracting.
What is 15 counters?
"15 counters" typically refers to a collection of 15 small objects used for counting, sorting, or playing games. Counters can take various forms, such as coins, tokens, buttons, or specially designed counting chips. They are often used in educational settings to help children understand basic arithmetic concepts or in board games for tracking points or resources. The specific use of 15 counters would depend on the context in which they are being employed.
