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β Addition
1 + 1 = 2
2 + 3 = 5
5 + 5 = 10
10 + 10 = 20
12 + 8 = 20
25 + 25 = 50
50 + 50 = 100
100 + 100 = 200
β Subtraction
5 β 1 = 4
10 β 5 = 5
20 β 10 = 10
50 β 25 = 25
100 β 50 = 50
30 β 12 = 18
75 β 25 = 50
200 β 100 = 100
β Multiplication
1 Γ 1 = 1
1 Γ 2 = 2
1 Γ 5 = 5
2 Γ 2 = 4
2 Γ 5 = 10
3 Γ 3 = 9
3 Γ 5 = 15
4 Γ 4 = 16
4 Γ 5 = 20
5 Γ 5 = 25
5 Γ 10 = 50
6 Γ 6 = 36
7 Γ 7 = 49
8 Γ 8 = 64
9 Γ 9 = 81
10 Γ 10 = 100
12 Γ 12 = 144
β Division
4 Γ· 2 = 2
10 Γ· 2 = 5
12 Γ· 3 = 4
20 Γ· 4 = 5
25 Γ· 5 = 5
36 Γ· 6 = 6
49 Γ· 7 = 7
100 Γ· 10 = 10
π Helpful Math Rules
Multiplication
Multiplication means adding the same number many times. Example: 3 Γ 4 = 4 + 4 + 4 = 12.
Division
Division means splitting something into equal groups. Example: 12 Γ· 3 = 4.
Perimeter
Perimeter means adding all sides of a shape. Rectangle: P = 2 Γ length + 2 Γ width.
Area
Rectangle area = length Γ width. Example: 5 Γ 4 = 20 square units.
Fractions
A fraction has a top number and a bottom number. Example: 1/2 means one out of two equal parts.
0
β οΈ Error: Result exceeds 15 digits
This calculator normally limits results to
15 digits to prevent extremely large calculations.
You can cancel or continue anyway.
Continuing may cause the calculator to crash.
Advanced examples:
2^8 β powers
sqrt(144) β square root
sin(90) β sine in degrees
cos(60) β cosine in degrees
log(100) β base 10 logarithm
ln(10) β natural logarithm
pi β Ο
abs(-5) β absolute value
Results larger than 15 digits require confirmation. Forced calculations have a maximum retry/calculation time of 30 seconds.
2^8 β powers
sqrt(144) β square root
sin(90) β sine in degrees
cos(60) β cosine in degrees
log(100) β base 10 logarithm
ln(10) β natural logarithm
pi β Ο
abs(-5) β absolute value
Results larger than 15 digits require confirmation. Forced calculations have a maximum retry/calculation time of 30 seconds.