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Find the distance between o and -3?
Take the absolute value of the difference between the two numbers. The difference between two numbers a and b is a-b or b-a. The absolute value is whichever one of these is not negative. So 0 - (-3) = +3 so the distance is 3 units.
How many cubic units is in a box that is there units high there unit wide and two units deep?
How many cubic units is a box that is three (3) units height, three (3) units wide, and two (2) units deep. The formula is height * width * length, so if you put the numbers from the above equation into the formula it turns out as 3 * 3 * 2 which equals 18.
Why are they called square numbers?
You can take 4 counters, and arrange them in a square. 0 0 0 0 (2x2) You can also do it with 9 counters 0 0 0 0 0 0 0 0 0 (3 x 3) Any number that you can arrange in a square like this is a square number, like 16 (4x4), 25 (5x5), 36 (6x6) etc. 1 is also a square number (1x1) What are triangular numbers? :)
What two numbers add up to 4?
0&4, 1&3, 2&2
How many 4 digit numbers can be formed using 0 1 2 3 5 7 how many contain 2 in units place?
Without repetition, 300. Of these 48 will have a 2 in the units place.
