41.25－(19.6－6.89)=?

5.45×4＋7.32=?

66.4＋9.9÷0.55=?

$$6\frac{5}{6}-2\frac{1}{4}+3\frac{5}{12}=$$ ?

$$9\frac{5}{9}+4\frac{1}{6}-3\frac{2}{3}=$$ ?

$$2\frac{8}{9}\div\left(\frac{1}{4}+\frac{2}{5}\right)=$$ ?

$$120\times\frac{5}{6}+2\frac{2}{5}\times150=$$ ?

(a)  

255÷ $$\frac{5}{8}$$ －204÷ $$\frac{3}{4}$$ ＝？

(a)  

　 $$\frac{3}{8}$$ ＋4.6

(a)  

3.5－ $$2\frac{1}{5}$$ =?

　 $$\frac{6}{7}$$ ×4.2

$$2\frac{1}{5}$$ ÷6.6=?

　 $$\frac{2}{7}$$ ×2.1－0.2

4.5×(2- $$\frac{4}{15}$$ )=?

1.96＋0.97－0.96=?

(a)  

16.8× $$\frac{11}{12}$$ － $$\frac{11}{12}$$ ×4.8=?

(a)