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U2L2 Decimal Review
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UNIT 2
Let’s review decimals
COMPARING & ORDERING
Line up the decimals.
Fill in the empty spaces with zeros.
Compare from the left to the right.
WORK THESE
3.45 _____ .4591
.432 ; .3128 ; .4219 ; 1.2
.562 ; .2891 ; 2.34 ; 2.1
ROUNDING
Find the rounding place.
Look to the right of the rounding
place.
If the number is five or greater, round
up.
If the number is less than five, your
rounding place stays the same.
ROUNDING CONT…
Numbers behind the rounding place
turn to zeroes in FRONT of the decimal.
Numbers behind the rounding place
fall into the water BEHIND the decimal
WORK THESE
Round to the tenths: 3.2678
Round to the hundredths: 125.6728
Round to the ten thousandths:
2.387198
MULTIPLYING
Line up the numbers.
Count the number of digits behind a decimal point
Multiply the numbers like you would whole
numbers
Put the decimal at the end of the answer and move
it the number of places you counted in step two.
WORK THESE
34.56 x 6.5
8.973 x 7.6
DIVISION
Move the decimal to the end of the
outside number.
Move the decimal the same number
of places on the inside number.
Put the decimal on the roof.
DIVISION CONT…
Divide like you would with whole
numbers.
If you have a remainder, add zeroes
behind the decimal and continue
dividing.
WORK THESE
Round Quotients to the nearest
hundredths!
56.789 ÷ 4.5
2.3866 ÷ .73
ESTIMATION
Round to the highest place value!!
Work These
23.57 + 48.9
.341 - .156
.5879 x 1.78
WORD PROBLEMS
READ IT!
PLAN IT!
SOLVE IT!
CHECK IT!
WORD PROBLEMS CONT..
Sarah bought 28 packages of peanuts at
$2.38 each. How much did she spend?
Trenton’s band made $142.50 playing a
gig last week. If there are five members in
the band, how much did each member
receive?
WORD PROBLEMS CONT..
Megan went to the grocery store and
bought 3 pounds of apples at $.99 a
pound, a box of cereal at $3.21, and
two cokes at $1.19 each. If Megan gave
the clerk a $20 bill, how much change
would she receive?
WORD PROBLEMS CONT..
A large cargo plane can carry 87.5
tons. Tanks weighing 4.5 tons are being
loaded onto it. What is the maximum
number of tanks it can carry?
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