1. The document contains notes from a math lesson that includes assignments, warm up problems, and examples for subtracting signed numbers.
2. Students have an even math assignment due the next day and a test on Friday.
3. The warm up problems cover topics like calculating circumference, writing numbers in scientific notation, finding averages, and calculating sales tax.
4. The lesson explains that to subtract signed numbers, add the opposite and use the rules for addition, then provides examples to work through.
2. lesson 68.notebook
Lesson 68 WarmUp:
Simplify.
1) What is the circumference of a circle whose radius is 4 in.?
2) Write 12 billion in scientific notation.
3) The average of 2 and 4 is 3. What is the average of the "reciprocals" of
2 and 4?
4) What number is 75% of 64?
5) What is the tax on a $7.40 item if the sales-tax rate is 8%?
February 25, 2014