Fractions and D...

The value of 30.5 - 30.4 + 30.3 - 30.2 + 30.1 - 30 + 29.9 - 29.8 + 29.7 - 29.6 + 29.5 - 29.4 + 29.3 - 29.2 + 29.1 - 29.0 = _________.

What is the missing number in the box?
$$600.0651 = 600 +$$ _____ $$+ 0.005+ 0.0001$$

$$0.24\times\ 0.2 =$$

$$5.25\times 9.1\times 0.0\times 8.26=$$ ____________.

$$3.254 \times 0.65 = ?$$

Find the value of $$617+6.017+0.617+6.0017$$.

Solve the given 
$$3.005+4.7$$

Any mixed fraction can be divided into two parts and they are:

Subtract the given decimals: $$4.17$$ from $$5.5$$ 

$$\dfrac { 5 }{ 6 }\times \dfrac { 4 }{ 7 } \times \dfrac { 14 }{ 15 } \times \dfrac { 13 }{ 25 }\times \dfrac { 15 }{ 4 } =$$