4.16 Rational Numbers STAAR REVIEW

​

RATIONAL NUMBERS

REMEMBER...

​CLASSIFYING NUMBERS

Multiple Choice

What is the best classification for this number? (how far down can you push this into the Venn Diagram)

-4

• none of these

• whole

• integer

• rational

Multiple Choice

Which of the following is not an integer?

• 0

• 1.57

• -6

• 10

Multiple Choice

• Yes

• No

Multiple Choice

Which Venn diagram correctly describes the relationship between whole numbers and integers?

REMEMBER...

MAKING REASONABLE ESTIMATES

Multiple Choice

Estimate the sum of the expression 4.91 + 15.04 to the nearest integer.

• 21

• 19

• 20

• -20

• 18

Multiple Choice

Gabe bought 5 bottles of orange juice at a market. Each bottle cost $2.43. How much did the orange juice cost all together?

• $7.43
• $10.05
• $12.15
• $20.05

Multiple Choice

CC and her 4 friends decide to go out to dinner at Applebee's. The bill for their table came to $65.30. If they want to split the bill evenly between them, how much will each person pay?

• $18.10
• $16.33
• $20.13
• $13.06

Multiple Choice

A store is shipping 26 birdhouses to a park. Each birdhouse weighs 3.93 pounds. What is the total weight of the shipment?

• 28.93 pounds
• 31.44 pounds
  
• 102.18 pounds
• 110.48 pounds

REMEMBER...

OPERATIONS WITH RATIONAL NUMBERS

Multiple Choice

3 + -7

• 10
• 4
• -10
• -4

Multiple Choice

-9 + (-5)

• -14

• 14

• -4

• 4

Multiple Choice

Find the sum: −5 + −4

• -9

• -1

• 9

• 1

Multiple Choice

Will the answer be positive or negative? 15 + -4

• positive

• negative

REMEMBER...

OPERATIONS WITH FRACTIONS

ADD OR SUBTRACT
​Need a COMMON DEMOMINATOR!

MULTIPLY
​TOP X TOP
BOTTOM X BOTTOM

DIVIDE
​LEAVE. MULTIPLY. RECIPROCAL.

Multiple Choice

solve 

• - 2/9
• - 5/9 
• 2/9
• no there

Multiple Choice

• -6/12
• -5/12
• 5/12
• -5/7

Multiple Choice

$$1\frac{5}{6}+-5\frac{2}{3}$$  

• $$-7\frac{1}{2}$$  

• $$-4\frac{1}{6}$$  

• $$-3\frac{5}{6}$$  

• $$-5\frac{1}{2}$$  

Multiple Choice

Divide these fractions

• $$\frac{8}{2}$$

• $$\frac{54}{4}$$
  

• $$13\frac{1}{2}$$
  

• $$13\frac{2}{4}$$

Multiple Choice

Solve the expression:
$$-33\div1.1$$

• $$-3$$

• $$30$$

• $$-30$$

• $$3$$

Multiple Choice

Multiply.

• -7  1/5
• -4/45
• -8
• 7

REMEMBER...

OPERATIONS WITH DECIMALS

​ADD OR SUBTRACT
Line up the DECIMALS!

​MULTIPLY
Line up the DIGITS!

​DIVIDE
Make the outside number a WHOLE.