5th Grade Math STAAR Review

5th Grade Math STAAR Review

Place Value

Easy as 1, 2, 3.... 1/10, 1/100, 1/1000

Make sure you check each place value of a number before you select an answer.

Multiple Choice

A temperature in Fahrenheit is shown in expanded notation.

(9 x 10) + (5 x 0.01)

How is this written as a number?

• 9.5

• 90.5

• 95

• 90.05

Comparing and Ordering Decimals

When ordering decimals....

1st - Line up decimals

2nd - Place zeros where you need them

3rd - order your numbers by looking at the greatest place value first

Read carefully - G to L or L to G

Multiple Choice

Are these decimals in order from least to greatest?
5.04
5.069
5.4
5.64

• yes
• no

Multiple Choice

Which comparison is not true?

• 4.2 < 4.35 < 4.4

• 5.0 < 5.05 < 5.005

• 6.0 < 6.001 < 6.01

• 8.003 < 8.04 < 8.2

Adding and Subtracting Decimals

When adding and subtracting decimals we must....

1st - Line up Decimals

2nd - Add zeros where needed

3rd - Add and subtract decimals

Make sure you borrow when needed or regroup when needed.

Multiple Choice

While at the grocery store, Mrs. Martin noticed that there were two different sized bottles of hot sauce, one was 16.9 ounces and the other 32.55 ounces. What is the difference in weight of the two bottles of hot sauce?

• 1.93

• 49.55

• 15.65

Multiplication

When we have lots of the same amount and we are repeatedly adding them together.

REPEATED ADDITION

If multiplying decimals, ignore the decimals and put them back in your answer later.

Multiple Choice

A pet store sold 74 puppies in one week. If each of the puppies cost 65 dollars , how much money would they have made?

• 440

• 139

• 4,810

• 814

DIVISION

When we HAVE A TOTAL and we are breaking it up into equal groups.

Remember your steps, DMSCB (Does McDonalds Sell Cheese Burgers)

Look for key words:

Equal groups, sharing, how much did EACH friend get.

Multiple Choice

The school district needs buses for 1,012 students for a field trip.  If each bus holds 92 students, how many buses will be needed?

• 9
• 11
• 13
• 15

PRIME AND COMPOSITE

Prime number- A number with only 2 factors, itself and 1.

Remember the first five.... 2, 3, 5, 7, and 11

ex. 13 is prime because I only can multiply 13 x 1 to get 13

Composite number- Has MORE than 2 factors.

ex. 14 is composite because I can multiply 14x1, and 7x2 to get 14!

ALWAYS divide by 3 before you say the number is prime, just to make sure.

Multiple Choice

Is 1 prime or composite?

• prime, because it only has 1 factor

• prime, because it only has 2 factors

• composite, because it has 2 factors

• neither

Multiple Choice

Is 21 prime or composite?

• prime, because is has 2 factors

• composite, because it has 2 factors

• composite, because it has 4 factors

• neither

PEMDAS (ORDER OF OPERATIONS)

When solving an equation you must work in this order.

P - Parentheses

E - Exponent

M/D - Multiplication and Division (we read these from L to R)

A/S - Adding and Subtracting (we read these from L to R)

**When a parentheses is right next to a number it means to....... MULTIPLY

Multiple Choice

 $6+3\left(19-\left(3+4\right)\right)$  

• 42

• 34

• 18

• 6

Multiple Choice

True or false:
Addition ALWAYS comes before subtraction.

• True
• False

Fractions, Fractions and MORE Fractions

Adding and Subtracting Fractions

USE 4 square and find a common denominator... may have to reduce

Multiply Fractions

We multiply straight across

Divide Fractions

When dividing fractions dont be shy, flip the 2nd and MULTIPLY.

TIBO - top in, bottom out when you have an improper fraction.

POPCORN - When you change your mixed to an improper fraction.

Multiple Choice

Change this Mixed Number into an Improper Fraction.

• 50/8

• 20/8

• 16/8

• 12/8

Multiple Choice

Change this Improper Fraction to a Mixed Number.

• 5 1/3

• 4 2/3

• 6

• 5 2/3

Multiple Choice

1/3 + 1/9

• 4/9

• 9/12

• 6/15

• 3/12

PERIMETER, AREA and VOLUME

Perimeter

All the way around the rim, add all sides.

Area

l x w - measuring the inside space of a 2D shapes.

Carpet, tile, square units, CM²

^Volume

l x w x h - Measuring how much a 3D shape holds. Cubic Units, CM³

Multiple Choice

What is the volume of this rectangular prism?

• 26 cubic units
• 24 cubic units
• 24 square units
• 26 square units

Multiple Choice

What is the perimeter of this rectangle? 

• 60 in
• 34 cm
• 60 cm
• 34 in

Multiple Choice

Find the AREA of this figure.

• 160 square feet
• 160 feet
• abcdefghijklmnopqr
  stuvwxyz
• 1600 feet

Converting Measurements

MAKE A T-Chart and look at your math chart.