Basic Math
Lets start from the Beginning.
Numbers 1 - 10 and simple operations.
Same numbers, written differently.
1 2 3 4 5 6 7 8 9 10 - + x ÷
1 2 3 4 5 6 7 8 9 10 - + x ÷
1 2 3 4 5 6 7 8 9 10 - + x ÷
1 2 3 4 5 6 7 8 9 10 - + x ÷
Addition
Our first math operation.
Order does not matter.
0 + 1 = 1
1 + 1 = 2
2 + 3 = 5
5 + 5 = 10
1 3
+ 2 + 6
3 9
Subtraction
Put the larger number first, please. It will be important in advanced lessons.
1 - 0 = 1
1 - 1 = 0
3 - 2 = 1
7 - 5 = 2
2 6
- 1 - 3
1 3
Multiplication
Order does not matter.
1 x 0 = 0
1 x 1 = 1
1 x 6 = 6
2 x 3 = 6
5 2 5
x 2 x 5 x 0
10 10 0
Division
Order matters here too. Largest number first, for now, to avoid fractions.
There are also a few ways to write this.
0 ÷ 1 = 0
2 ÷ 1 = 1
4 ÷ 2 = 2
12 ÷ 6 = 2
12 6 12
÷ 6 ÷ 12 ÷ 2
2 0.5 6
10 / 2 = 5
4 / 4 = 1
2 / 1 = 2
6 / 3 = 2
5
3 15
These structures can also be described like this:
15 ÷ 3 = 5
Dividend ÷ Divisor = Quotient
15 / 3 = 5
Dividend / Divisor = Quotient
15 Dividend
÷ 3 Divisor
5 Quotient
5
3 15
Quotient
Divisor Dividend
