math

math

Addition and Subtraction

what does the addition sign mean?

Addition is the "putting together" of two group of objects and finding how many in all.

Addition is taking two or more numbers and adding them together. It is the total sum of of two or more numbers.

example

how much is two plus three?

https://www.youtube.com/watch?v=exsFIpQVNIw

what does the subtraction sign mean?

subtraction

is the act or process of taking one number away from another.

when

When we subtract, the number of things in the group reduce or become less.

https://www.youtube.com/watch?v=GdXClek-05I

Multiple Choice

8-5?

• 10

• 2

• 4

• 3