Large Number Math Review

   The review is due on Monday, September 25th. We will be writing our math test on Monday September 25th. We will also be completing a review in class on Thursday and Friday. 


1. Fill in the blanks below. Each number needs to be expressed in standard, expanded and written form.

Standard	Expanded	Written
3 120 048
		Fifty thousand five
	10 000 000+ 2 000 000+ 300 000+     10 000+ 6 000+ 100 + 40 +6

  
 3.  Brandon researched the areas of some large deserts.

Desert	Area in square kilometres
Chang Tang Desert	800 310
Peruvian Desert	253 820
Great Sandy Desert	388 500
Namib Desert	207 977

a)    Compare the areas of the Chang Tang Desert and the Peruvian Desert with an inequality sign ( <, >)

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b)    Order the area of the deserts from least to greatest.

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Explain your strategy. ______________________________________________________________________________________________________________

          4.    Round the following numbers to the nearest thousands.

a)    234 541 ________________       1 254 010 ____________________

b)   24 354 619 ______________________

5.  Round the following numbers to the nearest hundreds.

3 879 _________    2 432 447 _____________ 24 969 567___________

Explain how you would round a number. Don’t forget to use math words.

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List the factors of the following number. Identify whether or not they are prime or composite.

a       a)  62                                            b)  44

c)    74                                   d)  24

Find the greatest common factor (GCF) for each set of numbers below.

a     a)    48 and 60                                            b)  40 and 50

c      c) 54 and 90                                   


LList the first five multiples of the numbers below.
a) 12
b) 14
c) 9