Math Benchmark 2

September 21, 2012

The cruise ship traveled 529 kilometers in a 24-hour period.How many kilometers can the cruise travel in one week?

The ship traveled 529 Km

In a period of 24 hr or what it is the same in 1 day.

1 day ------ 529 Km2 days -----1,058 Km3 days -----1,587 Km4 days -----2,116 Km5 days ----- ? Km6 days ----- ? Km7 days -----? Km

If in 1 day traveled 529 Km In 7 days the ship will travel7 days x 529 Km=

529 KmX 7 days

3703 Km

1 week is 7 days

The ship will travel 3703 Km in a week.

Mrs. Eason has 21 students in each of her 6 math classes. What is the total number of math students that Mrs. Eason has in her classes?

Mrs. Eason has 6 math classes

Each math class has 21 students

What the total number of students is

21 Stud 21 Stud 21 Stud

21 Stud 21 Stud 21 Stud

Since each class has 21 students I could add each class number of students and get the total number. There is a faster method: multiplication.I can multiply the number of classes for the number of students

6 classes x 21 students = 126 students

Answer:Mrs. Eason has 126 students in all her math classes.

Mrs. Knight bought 854 bottles of water for field Day at Willbern Elementary. Each bottle contained 16 ounces of water. How many ounces of water did Mrs. Knight buy altogether?

Bought 854 bottles

1 bottle 16 ounces

Total number of ounces in all the bottles

16 ounces16 ouncesX 5 80 ounces

854 bottles times 16 = ??? ounces

So if 1 bottle has 16 ounces, 2 bottles have the double, three bottles have the triple, etc., etc.As I put in the drawing in section 2 If 1 bottle = 16 ounces854 bottles = 854 x 16 ounces

854 .X 16 oz5124 .

+ 8540 .13,664 oz

Answer:Mrs. Knight bought 854 bottles with a total of 13, 664 ounces of water.

An 8-ounce package contains 24 cookies. If there are 48 packages to a case, how many cookies are there in each case?

1package of 8 oz has 24 cookies

48 packages is 1 case

Total number of cookies in 1 case = ???

24 cookies

1 case=48 packages

If 1 package has 24 cookies

1 case has 48 packages

I need to multiply the number of packages in a case for the number of cookiesin each package

48 packages x 24 cookies=

48 X 24 192+ 960 1,152

Answer:

There are 1,152 cookies in each case

Patricia and 2 friends went shopping for birthday presents. They bought presents costing $125, $18, $95, and $46. What is the best estimate of the total cost of the gifts?

They bought presentsThe cost was $125, $18, $95, and $46

Estimate the total cost

Estimate is make an approximate calculation of the cost

Estimating

125 --- 13018 ----- 2095 ----- 10046 ----- 50

I need to add the estimation for each present

130+ 20 100 50 300

Answer:

Patricia and friends spend around $300 buying their presents

The distance from San Antonio to Houston is 228 miles. The distance from Houston to New Orleans is 376 miles. Alexandria is 320 miles from New Orleans. Which is the best estimate of the total miles from San Antonio to Alexandria?

San Antonio to Houston 228 miles

Houston to New Orleans 376 miles

New Orleans to Alexandria 320 miles

San Antonio to Alexandria ??? miles

228 miles228 ---- 200 miles

376 miles376 ---- 400 miles

320 miles320 ---- 300 miles

??? miles

I estimate the miles to the hundreds place and then add all the distances

200+ 400

300900

Answer:

There are approximate 900 miles from San Antonio to Alexandria

Janice wants to buy a pair of hightop Reeboks for $42.95 , 2 pairs of blue jeans for $34.50 each and a sweatshirt on sale for $19.99. Which of the following is a reasonable total before tax is added?

Janice buyReebok at $42.952jeans at $34.50 each oneA sweatshirt at $19.99

What is the best estimation

42.95 ----- 40

34.50 ---35Then 35 + 35 = 70

199.99 --- 20

The first thing to do is to estimate each individual cost.Second is to multiply the cost for jeans since she bought 2 pairs.Last I need to add all the estimations

35 x 2 = 7040 +70 + 20 = 130

Now I look in the answers which one matches this information

Answer:

The answer is any choice that has 130 included. The option cannot be less than 130 or higher than 130 by itself.It should be a range that include 130

The teacher passes out 7 supply totes in the classroom. Each tote contained 15 markers, 4 pairs of scissors, and 4 rules. How many total of markers did she pass out?

Passes 7 totesEach tote has 15 markers

4 pairs of scissors4 rulers

How many markers (only) = ???

15 markers

15 markers

15 markers

15 markers

15 markers

15 markers

15 markers

If each tote has 15 markersI just need to multiply the number of totes for the number of markers in each toteThe same is to multiply the number of markers for the number of totes

15X 7105

Answer:

The teacher pass out 105 markers

The movie theater ordered 14 cases of popcorn at $5.50 per case. Each case has 22 bags of popcorn. How many bags of popcorn did the theater received?

14 cases of popcorn1 case $5.50 eachEach case 22 bags of popcorn

How many bags in total= ???

I do not need the cost

14 cases

22 bags in each case

22 bags times 14 cases

Since each case has 22 bags of popcorn and I have 14 cases I just need to multiply the number of cases for the number of popcorn bags in each

14x 22

28280308

Answer:

The theater received 308 bags of popcorn

Which statement could be used to find the number of kilometers the ship could travel in one week if they traveled the same distance every day?

I need to choose the best option from a group of answer to decide the number of Km traveled in 1 week considering that it is traveled the same each day

I know that I can multiply the number of km traveled each day for the number of days in a week

1 day = ???? km

7 day = ???? km

2 day = ???? km

3 day = ???? km

4 day = ???? km

5 day = ???? km

6 day = ???? km

a) Multiply the number of kilometers by the hours in one day.

b) Multiply the number of kilometers by the number of days in one week.

c) Divide the numbers of kilometers by the number of hours in a day.

d) Divide the number of kilometers by the number of days in one week.

Answer:

Answer b) will be the best option to calculate the number of kilometers traveled by a ship in one week.

I need to know the number of hours in 1 week

This is what I thought I should do initially

I need to add the number for each day so this will give me a smaller number

I need to add the number for each day so this will give me a smaller number