Find the Product
Estimating
Evaluate the Expression
Find the Rule
Word Problems
100

20 x 40

800

100

28 x 31 x 3

about 2,700

100

b = 5

16 + b

21

100

INPUT        OUTPUT
   1                 6       
   2                7        
  3                 8       
  4                 9       

Find the rule.
   

n + 5

100

Pencils come 20 to a package, 48 packages to a carton, and 12 cartons to a case.  About how many pencils are in a case?

about 10,000

200

5 x 66

330

200

6 x 21 x 19

about 2,400

200

b = 5

20b

100

200

INPUT       OUTPUT
   1                3       
   2                6       
   3                9       
   4               12      

Find the rule.

n x 3

200

Simon used 28 nails to make each bird house.  How many nails did he use to make 12 bird houses?

336 nails

300

10 x 3.2

32

300

19 x 5.8

about 120

300

16 + p = 21

p = 5

300

INPUT    OUTPUT
    1             10     
    2             20     
    3             30     
    4             40     

Find the rule.

n x 10

300

Lena bought 5 shirts at $17 each, 2 pairs of jeans for $28 each, and a pair of sandals for $19.  How much did she spend in all?  

$160 dollars

400

3.6 x 0.5

1.8

400

100 x 82.35

about 8,200

400

5 x e = 110

e = 22

400

INPUT    OUTPUT
    16            8     
    24           16    
    28           20    
    60          52     

Find the rule

n - 8

400

Braxton bought 2.06 pounds of granola.  The cost of granola is $3.99 per pound.  About how much did Braxton spend?

About $8.00

500

7.8 x 0.003

0.0234

500

4.8 x 63.3

about 300

500

64 / k = 8

k = 8

500

INPUT    OUTPUT
   5               500   
   8               800   
   20            2,000 
  100         10,000 

Find the rule.

n x 100

500

Ellie is 4 years older than Ms. Wilson's dog.  Use "z" for Ms. Wilson's dog's age and write an expression to give Ellie's age.

z + 4

M
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n
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