Numbers - Mid Unit Review

Rounding

100

Round 0.6588 to the nearest tenth

0.7

200

Round 544 900 to the nearest thousand

545 000

300

Round 244.896 to the nearest whole number

245

400

Round 659.90 to the nearest hundredth

659.90

500

Round 7823.98232 to the nearest tenth

7824.0

Number Systems

100

The letter Z is used to represent which type of real number? 

Integers

200

State whether 2.335673989 is a rational or irrational number

Irrational

300

Which subset does the number 0 belong to? 

Whole(W), Integer(Z), Rational(Q), Real (R)

400

Which subset does the number -9.6 belong to?

Rational(Q) & Real(R)

500

Which subset does the number 1.123123123 belong to? 

Rational(Q) and Real(R)

Integers

100

Compute: −3+7 

4

200

Compute: −8−5

-13

300

Evaluate: (−2)×6−4

-16

400

A temperature drops −4 degrees each hour for 6 hours starting from +12∘. What is the final temperature?

-12

500

A temperature starts at −3°. It rises 5° per hour for 4 hours, then drops 7° per hour for the next 3 hours. What is the final temperature?

-4

Fractions

100

Simplify the fraction 36/48 to lowest terms.

3/4

200

Add and simplify: 5/12+7/18

29/36

300

Multiply and simplify: −3/4× 8/9

-2/3

400

Divide and simplify: 7/10 ÷ 14/25 

5/4

500

A recipe needs 3/4 cup sugar per batch. How many cups are needed for 5/2 batches?

1 and 7/8

Decimals

100

Convert the decimal 0.625 to a fraction in simplest form

5/8

200

Express 0.8 as a fraction in simplest form.

4/5

300

Express 1/5 as a decimal.

0.2

400

Express 1/10 as a percentage

10%

500

Express 0.7 as a percentage

70%