Motor Math (4-3-1) MondayMarch 19, 2012 Rational Numbers

Area =81 in.2

1. A triangle has an area of 13 ft2. How big would a similar triangle be if you used a scale factor of 6?

2. The area of a square playground is 900 meters. What is the length of each side?

3. Which inequality symbol would make this number sentence true: ?

4. What is the GCF between and ?

SPI 2.3 Use rational numbers and roots of perfect squares/cubes to solve contextual problems.SPI 2.2 Compare rational numbers using appropriate inequality symbols.SPI 2.4 Determine the approximate location of square/cube roots on a number line.

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EXIT 12E

Which of the following inequality symbols, will make this number sentence true?

A. <

B. =

C. >

D. +

Motor Math (4-3-2A) TuesdayMarch 20, 2012Using Rational

Numbers

Area =81 in.2

1. If you stacked a cube with a volume of 216 ft3 on a cube with a volume of 729 ft3, how high would they reach?

2. There are five puppies in a litter. They weigh 2.4 pounds, 3.5 pounds, 2.7 pounds, 3.1 pounds, and 3.2 pounds. The heaviest puppy is adopted by a neighbor. How much do the remaining puppies weigh all together?

3. Of the 95 counties in TN, 33 are in East TN. About what percent of counties are in East TN?

SPI 2.3 Use rational numbers and roots of perfect squares/cubes to solve contextual problems.SPI 2.5 Solve contextual problems that involve operations with integers.SPI 2.6 Express the ratio between 2 quantities as a %, & a % as a ratio…

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EXIT 12E

The temperature dropped 4° each day for 5 days. If the temperature dropped 2°F on the first day, what was the temperature 5 days later?

Motor Math (4-3-3A) WednesdayMarch 21, 2012Proportions &

Expressions

Area =81 in.2

1. The rectangular prisms are similar. What is the ratio of the volume of the smaller prism to the volume of the larger prism? What is the scale factor?

2. A scientist has a 80 mL of a solution that is 5% salt by weight. She adds 20 mL of a solution that is 3% salt by weight. What percent salt is the resulting solution?

SPI 1.1 Use proportional reasoning to solve mix/conc. problems.SPI 2.1 Simplify numerical expressions involving rational numbers.SPI 2.7 Use ratios and proportions to solve problems.

2mm4mm 3mm

9mm12mm

6mm

EXIT RAMPOne hundred-forty seventh-graders are going on a field trip to the National Civil Rights Museum. The ratio of chaperones

to students must be 1:10. How many chaperones are needed for the trip?

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EXIT 12E

Motor Math (4-3-4A) FridayMarch 23, 2012 Expressions &

Equations

Area =81 in.2

SPI 3.1 Evaluate algebraic expressions involving rational values for coefficients and/or variables.SPI 3.7 Translate between verbal and symbolic representations of real-world phenomena involving linear equations.

1. The area of a trapezoid is given by the expression where and are the lengths of the two parallel bases, and is the height. What is the area of the trapezoid below?

𝟐𝟏𝟐𝒊𝒏 .

𝟒𝟑𝟖𝒊𝒏 .

𝟑𝟏𝟒𝒊𝒏 .

2. The cost of a cab ride to the airport $4 and $1.20 for each mile. Write an expression to show the relationship between the total cost c and the number of miles m.

EXIT RAMPEvaluate

When 8

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EXIT 12E