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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 the rule for a rhombus?
It is required to use only the special drinking fountains, lunch counters, schools, and swimming pools that have been provided and are clearly marked for its use.
