Hey can anyone help me?
So I calculated the answer on a calculator but I wanna learn how to do this without calculator

6.5*10^4 + 6.2*10^5

Question

Hey can anyone help me?
So I calculated the answer on a calculator but I wanna learn how to do this without calculator

6.5*10^4 + 6.2*10^5

greatlife44 · Answer

so it's actually easy. whenever you multiply a number by 10 you add a zero. 

6*10 = 60, add one zero. 
6*100 =600 add two zeros

greatlife44 · Answer

$$10^{4} = 10,000$$

10,000*6.5 = ?

janu16 · Answer

685000

janu16 · Answer

I mean 65000

greatlife44 · Answer

good

greatlife44 · Answer

$$10^{5} = 100,000$$

$$100,000*6.2 = ? $$

janu16 · Answer

620000 than you would add those and get 685000 right?

greatlife44 · Answer

so then you would add the two together: 

$$620,000+65,000 = 685,000$$

janu16 · Answer

Thx

triciaal · Answer

the objective is to learn exponents and scientific notation design to do calculations with very large and very small numbers.

triciaal · Answer

|dw:1457203865499:dw||dw:1457204070754:dw|