Posted by **B.B.** on Saturday, June 20, 2009 at 9:01am.

Name the property that justifies each step.

[(2x100)+(3x10)]+[(1x100)+(5x10)]

= (2x100)=[(3x10)+(1x100)]+(5x10) I think this is Commutative

= (2x100)+[(1x100)+(3x10)]+(5x10) I think this is Distributive property

=[(2x100)+(1x100)]+[(3x10)+(5x10)] I think that this is Associative property.

=[(2+1)x100]+[(3+5)x10] I think that this is the Distributive property.

= (3x100)+(8x10) This is Basic facts.

=380 Expanded form to standard form.

Is this all correct? Thanks for your help.

## Answer This Question

## Related Questions

- Math - What is the property type of (2x100)+[(1x100)+(3x10)]+(5x10)
- Physics - A capacitor has a charge of 5 µC when charged by a potential ...
- Math; PLEASE CHECK MY ANSWERS - 1.Which of the following is greater than 4.3x10^...
- physics - four particles with charges +5x10^-6C, +3x10^-6, +3x10^-6C, and +5x10...
- chem 12 - a) Calculate [H3O^+] in a 0.15M solution of benzonic acid, HC7H5O2(aq...
- Chemistry - 4. 5.6 x 10-6 mol of A and 5 x 10-5 mol of B are mixed in a 200 mL ...
- Algebra I - Answer check - 2. a) 7^12/7^4 = 7^8 b)x^11/x^5 = x^6 c)12x^5/3x^2 = ...
- Algebra - Name the property of real numbers illustrated by the equation. -4(x...
- math - standard form - please could you check the first 2 then explain the ...
- Algebra - 55. Find the range of y = 2x + 1. a. all real numbers b. all positive ...

More Related Questions