Ted says that 3/10 * 100 equal 3 is he correct use a place value chart to explain your answer

No, 3/10 * 100 = 30

Step-by-step explanation:

You have to calculate 3/10 * 100 in three steps. First rewrite 3 as 3.0; nothing changes, in this way the procedure is easier. Then,  divide 3.0 by 10. To divide by 10 you have to move the decimal point one step to the left. So, 3.0/10 = 0.30, or just 0.3. Now you have to multiply 0.3 by 100. To multiply by 100 you have to move the decimal point two times to the right. So, 0.3*100 = 30.0 or just 30.

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.