Four fundamental operations
Two multiplied by two is four.
二乘二得四。
Two times tｗo is four.
二乘二得四。
Subtract １ from ２ and you have １ .
二減一得一
５ minus １leaves ４
五減一剩四。
My students have learned to do division.
我的學生們已學會做除法。
The dimensions of this small parcel are eighteen by eighteen by twelve.
这个小包裹的尺寸是18*18*12。
Five raised to the power of two.
５的２次方
five cubed
５的３次方
Six raised to the power of nine.
６的９次方
Add one and one to make two.
1+1=2
One and one equals two.
1+1=2
One plus one equals two.
1+1=2
a (or one) half
1/2
a (or one) third
1/3
a quarter or one fouth
1/4
a (or one) fifth
1/5
10 minus 5 leaves 5
10-5=5
Four divides twelve three times.
12÷4=3
Twelve divided by four equals three.
12÷4=3
Four divides twelve three times.
12÷4=3 ，(以)4除12=3次
Twelve divided by four equals three.
12÷4=3， 12被4除=3
One from two equals one.
2-1=1
Subtract two from one to get one.
2-1=1
Two minus one equals one
2-1=1
Two minus one leaves one,
2-1=1
two thirds
2/3
Thirty minus forty-five equals negative fifteen.
30-45 = -15
Three multiplied by six equals eighteen.
3×6=18
Three sixes are eighteen.
3×6=18
Three times six equals eighteen.
3×6=18
5 squared is 25.
5 的平方是 25
Six divided by two is three.
6 ÷ 2 = 3
Seven multiplied by three equals twenty-one.
7 x 3 = 21
Seven times three equals twenty-one.
7 x 3 = 21
nine tenths
9/10
B is divided by A
B除以A
﹕A divides B
B除以A，A除B