nsnumberline.html

Number line

Adapted from a curriculum written by Alexander Shen, Moscow, Russia

Where is the midpoint of a segment if its endpoints are at 17 and 33?
Where are the points that divide the segment with endpoints -4 and 1 in these proportions?
1. 2:3
2. 3:4
A point at x on a number line was moved 5 units to the left. Where is it now?
A point at x² on a number line lies to the right of a point at x. What value can x have?
Where is the midpoint of a segment if its endpoints are at a and b?
On these number lines, mark all points x such that
1. x - is an integer:
2. is an integer:
3. 2x is an integer:
4. x - 2 < 2x:
On a number line, mark all points x so that among inequalities $x > 1,x > 2,...,x > 9,x > 10$
1. exactly three are true:
2. an even number is true: