+8
6
You can make a number line starting with the number -4 and ending with the number 10. Then start from -4 and count 6 numbers and that will be your answer, which is 2. -4 + 6 =2.
6 1/2
Visualize a number line. -6 is four to the left of -2. 6 is eight to the right.
0 is the middle number, as below it is -1 -2 -3 -4 -5 -6 and so on, above it is 1 2 3 4 5 6, etc.
-6 > - 7 since we divide to both sides with a positive number such as 2 is, the sign does not change, so that -6/2 > -7/2 -3 > -3.5
6
difference = 4 - (-2) = 4 + 2 = 6
6 = 2 4 5 6 7 9 , 2 and 5 are mirror images, 6 and 9 are rotated
No, the number 2 does not have line symmetry.
(-2) - (+6) = -2 -6 = -8 The difference is one number subtracted from another number. If you relate this question to the number line, it is easier to understand. -l-----l-----l-----l-----l-----l-----l-----l-----l-----l-----l-----l-----l -6...-5....-4....-3...-2....-1.....0...+1...+2...+3...+4...+5...+6 The "distance" between -2 and +6 is 8. But, the direction on the number line in which you are moving does change things. When we subtract +6 from -2, the answer is further to the left on the number line. Plus +6 moves the answer to the right. Plus -6 moves the answer to the left. Similarly, minus +6 moves the answer to the left and minus -6 moves the answer to the right.
The fraction number line (its more sophisticated name is "Rational Number Line") looks like an ordinary straight line, but each submicroscopic point on the line represents a number which can be represented as a fraction of two integers. The number "zero" stands at the center of the line, and there are an infinite number of points in the line. No matter how close together two fractions are, there are an infinite number of fractions between them. A number line is a strictly theoretical concept. It really isn't possible to draw more than an extremely limited example of a number line, since there is no limit to the number of points on a number line. Here's a very primitive fraction number line, showing only halves: -7/2 ... -3 ... -5/2 ... -2 ... -3/2 ... -1 ... -1/2 ... 0 ... 1/2 ... 1 ... 3/2 ... 2 ... 5/2 ... 3 ... 7/2 And an only slightly more intricate line showing only sevenths: -6/7 ... -5/7 ... -4/7 ... -3/7 ... -2/7 ... -1/7 ... 0 ... 1/7 ... 2/7 ... 3/7 ... 4/7 ... 5/7 ... 6/7