$$5.62\times10^{-7}$$  

$$9.8\times10^4$$  

$$39.39\times10^3$$  

$$7.77\times10^7$$  

20.35 x 10⁴

.2035 x 10⁴

2035 ⁴

2.035 x10⁴

6.8 x 10⁶

6.8 x 10¹²

8.4 x 10⁶

3.2 x 10¹²

16 x 10¹⁶

16 x 10⁸

6 x 10⁸

6 x 10⁴

1.02 x 10⁸

1.02 x 10⁹

10.2 x 10⁸

10.2 x $$10^9$$  

$$4.0\ \times\ 10^2$$   

$$2.0\ \times10^1$$  

$$2.2\times10^4$$  

$$2.2\times10^5$$  

4.3092 x 10¹

3.9098 x 10⁷

3.9098 x 10⁸

5.7678 x 10⁸

That the exponents are different

That the constants are the same

That the exponents are the same

That both constants are positive

Make them the same

Add/subtract them

Keep them

Multiply/divide them

must be in base 10

the number left of the decimal must be between 1 and 9 (including 1&9)

must have a ninja one

must have an exponent

the number left of the decimal must be negative