Mental Math, Fluency Objectives, and Context

Q: What do we want our students to be able to do?

(.75)(80)=

Estimate the sum:

694 + 708 + 699 + 696 + 707

5 × 7 × 8 × 2 =

75% of 80 =

If you have paint a 10' by 80' wall

and one gallon of paint covers

400 sq. feet, how many gallons of

paint do you need?

If the coat normally costs

$80 and it is on sale for

25% off, what is the sale

price of the coat?

You are making a stew with potatoes, carrots, and meat. You use 3 pounds of potatoes at $1.04 per pound; 3 pounds of carrots at $1.20 per pound; and 2 pounds of meat for $3.60 per pound. What is the average cost per pound of the stew?

If you drive 60 mph

for 1.5 hours, how far

did you travel?

You plan to buy carpeting for a 20' by 30' room. How many square feet do you need to buy? If the

carpet costs $.70 per square foot, how much will the carpet cost?

If you drive 55 mph

for 3.5 hours, how far

did you travel?

NCTM Algebra Standard

http://www.nctm.org/fullstandards/document/chapter7/alg.asp