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Evaluate Problems with Decimals
Conversions
Inequalities
Forms
Strategies
100

8.89 + 2.3 = 

11.19

100

2.5 lbs = ______oz

1 lb equals 16 oz

40 oz

100

4.252 _______ 4.065

greater than

100

Write 3.452 in unit form

3 ones + 4 tenths + 5 hundredths + 2 thousandths

100

Represent this problem using a number line:

1.7 + 3.8


See Mrs. Putnam's answer

200

5.64 - 3.9 =

1.74

200

220 mL = ______ L

0.22 L

200

0.005 ________ 0.02

less than

200

What form is this?  (2 x 10) + (3 x 1) + (8 x 0.1) 

Expanded form

200

Miss Song shows her class the given area model.  The area model represents 1 whole.  Do you agree with Riley or Kelly?  EXPLAIN

Riley says the shaded area shows 0.25

Kelly says the shaded area shows 0.205

Two tenths and five thousandths are shaded.

Kelly is correct.

300

5.7 x 1.16 = 

6.612

300

0.086 m = _____ cm


8.6 cm

300

479 thousandths ________479 tenths

less than

300

Tyler evaluates the expression 3.77 + 6.84.

Tyler's work is shown.  3.77 + 0.23 + 6.61 = 10.61

1. Explain Tyler's strategy

2. What form is this expression written in

Tyler split up 6.84 into (0.23 + 6.61)   

(3.77 + 0.23) + 6.61 =

          (4)         + 6.61 = 10.61

Standard or decimal form


300

Use your place value chart and write:

              32.36

Divide this number by 10 and write your answer in both standard form AND fraction form.

3.236

3 236/1000

400

8.75 divided by 25 =

0.35

400

57 in = ______ft

12 inches in a foot

4.75

400

6.053 _____ (6 x 1) + (5 x 0.01) + (3 x 0.001)

=

400

Order the numbers from least to greatest in standard form.

6.555         6.92        6.094       6.4       6.359


6.094     6.359     6.4      6.555     6.92

400

Explain how estimation can help you solve this problem.

Estimate each quotient and solve.

7.8 divided by 0.02

8 divided by 2 hundredths = 400

500

(2.87 + 8.49) - (10.26 divided by 7.6) =

10.01

500

2.5 kilometers = ________ cm

250,000

500

0.3 x (1.8 + 0.7) _____ 0.05 x (1.8 + 0.7)

greater than

500

Write a word problem that can be solved by evaluating the given expression.  Find the answer to the word problem you write.

5 x (2.21 + 2.52 + 8.26)

64.95

500

Mr. Evans buys 3 new books and 3 used books.  He spends $104.16 altogether.  

The used books cost $18.82   $11.32  &  $16.51.  Each of the 3 new books costs the same amount.  How much does each of the new books cost?

$19.17