this movie is funny but educational


math addation is when you count up the number line the amount asked.
EXAMPLE: 3+6 = 1.you find 3 then count up 6 numbers.

ANSWER: 9
external image no_line10.gif

math subtraction you do the opasite so you go to the left on the number line the number asked.

EXAMPLE: 9-2= find 9 on the number line then go down 2 to the left.

ANSWER: 7

division is a way to make a smaller anwser than the number you start out with.
For example 4divided by 2 is just how many times 2 goes into 4.

negitive is the same as subtraction you go down the number line to the left.

http://www.youtube.com/watch?v=a81YvrV7Vv8
http://www.calculator.com/pantaserv/makecalc
external image math0011.gif


negitive minus negitive
1. (-5)-(4-)=
2. (-9)-(-7)=
3. (-7)-(-1)=

positive plus negitive
4. 10+(-5)=
5. 11+(-11)=
6. 20+(-19)=







1.-1 2.-2 3.-6 45. 5.0 6.1