The computer can easly [_ _ _ ch] patterns and colours, so the job of a cartographer is easier and he can work more and more precisely

A + B is the operation called [a_d_ _ _ _ _].

A = {a,b,c}, A is a set which has three [_ _ _m_ _t_]

|A| it is [_b_ _ _u_ _] value of A

If a number N is [d_v_ _ _ _ _ _] by four, then it is even

The earth has on approximate shape to the [_ph_ _ _]

Even numbers are the opposite of the [_n_ _ _n] numbers

A square has four [_i_h_] angels