May be to your discussion.

7. here's how mo solved the subtraction problem

635 - 813:

635

- 813

- 222

mo did this by working from right to left, saying

5 – 3 = 2

3 - 1 = 2

6 - 8 = -2

a. is mo's answer right?

b. solve

6(100) + 3(10) + 5(1)

- [8(100) + 1(10) + 3(1)]

by working with expanded forms. discuss how

mo's work compares with your work in expanded

forms.

What is the definition of exponential decay?

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

The bottom of ignacio's desktop is 74.5cm from the floor. ignacio's sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk