Elementary Math 3/1
Numbers (to ten)
[edit | edit source]A number is a symbol that represents how many objects there are in a set.
A number can be written as a symbol (1, 2, 3, 4, 5, 6, 7 ...) or a word (one, two, three, four, five, six, seven ...)
1, "one" -
|
2, "two" -
| |
3, "three" -
| | |
4, "four" -
| | | |
5, "five" -
| | | | |
6, "six" -
| | | | | |
7, "seven" -
| | | | | | |
8, "eight" -
| | | | | | | |
9, "nine" -
| | | | | | | | |
10, "ten" -
| | | | | | | | | |
Math Symbols
[edit | edit source]Plus sign (+)
+ The addition symbol tells you to combine the two numbers on either side.
2 + 2 is the same as saying "two plus two"
Minus sign (-)
- The subtraction symbol tells you to take away the number on the right from the number on the left.
2 - 1 is the same as saying "two minus one"