Representing Decimals to the Thousandths
Decomposing a number
Rounding and Multiplying Decimals
100

Write the following number in expanded form:

346.23

300 + 40 + 6 + 0.2 + 0.03

100

Write the position and value of 5 and 1:

7952.341

Position:

5-Tens

1-Thousandths

Value:

5-50

1-0.001 or 1/1000


100

Round to the nearest hundredths:

1.452

1.45

200

Write the following in standard form:

Forty-five thousand two hundred thirty-two and five tenths.

45 232.05

200

Decompose the following number:

192.064

100 + 90 + 2 + 0.06 + 0.004 

or

(1 x 100) + (9 x 10) + (2x1) + (6 x 0.01) + (4 x 0.001)

200
True or False?


2697.258 rounded to the nearest tenth is 2697.26

False

2697.3

300
Use <, >, or = 


44.079 ___  44.08

44.079 < 44.080

300

Write the following in standard form:

2/10 + 7 hundreds + (4 x 1/1000) + 4 hundredths + (23 x 100)

723.244

300

Tracy has $35.00. Can she buy 2 shirts for $16.59 each?  Make an approximation (round).

16.59 when rounded to the nearest unit (dollar) is $17. 

So, $17 x 2 = $34.

Therefore, Tracy can buy both shirts since $34 < $35.

400

Arrange these numbers in DECREASING order.

       

2.1, 0.24, 1.3, 1, 2.41, 0.29, 0.019

2.41, 2.1, 1.3, 1, 0.29, 0.24, 0.019

400

True or False?

(4 x 102) + 256 hundredths + 8 tens + 0.06 = 482.62 

 True

400

254.45 x 29 = ?


7379.05

500

What number am I?


I have four thousands.

I have seventy-five ten thousands.  

I have seventy-five thousandths.

I have seven tenths.


754 000.775

500

At the Hidden Treasures boutique, Laurie’s purchases came up to 74 tenths + 3 tens + 0.05 + (2 × 102). Her mother’s  purchases came up to 654 hundredths + 23 tens. Is the sum  of Laurie’s purchases greater than or less than the sum of  her mother’s purchases?

Laurie's purchases are greater than her mom's

$237.45 < $236.54

500

David also has 100 pieces of red rope each measuring 1.52 dm. How many metres of red rope does he have in all?

1.52 dm x 100 = 152 dm

152 dm divdie by 10 = 1.52 m

Therefore, David has 15.2 m of rope in all.

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