Fractions
Operations
Rounding
Elapsed Time
Strategies
100
This type of fraction always has a 1 in the numerator.
Unit fraction
100
You should use this operation to solve the following problem.

Jane has 5 red marbles and 4 blue marbles.  How many marbles does Jane have in all?

Addition
100
42 rounded to the nearest ten.
40
100

Jonah arrived at the doctor's office at 1:00 P.M. He finally saw the doctor at 1:30 P.M. How long did Jonah have to wait?

30 minutes
100
Show one way to solve 4 X 6
Equal groups, repeated addition, an array
200
cz
Greater than
200

You should use this operation to solve the following problem.

Matt puts 5 stickers on each page in his notebook.  His notebook has 5 pages.  How many stickers does Matt have?

Multiplication
200
98 rounded to the nearest hundred.
100
200

Robbie set out on a walk at 12:30 P.M. He walked by some shops and through the park. When he returned home it was 1:15 P.M. How long did his walk take?

45 minutes
200
Show one way to show 42 divided by 7
Equal groups, repeated subtraction, an array
300
This fraction is equivalent to  1 

                                        ____

                                           2

2/4......3/6.....4/8.....5/10....6/12
300

You should use this operation to solve the following problem.

Tom is having 32 people at his birthday party. He has 4 boxes to fill with goody bags for each of his friends.  He wants to put the same amount of goody bags in each box.  How many goody bags will Tom put in each box?

Division
300
236 rounded to the nearest hundred.
200
300

Erik's kitchen sink got clogged, so he called a plumber. The plumber arrived at 10:45 A.M., and finished fixing the sink at 11:40 A.M. How long did it take the plumber to fix the sink?

55 minutes
300
Show one way to show that 2/4 is equivalent to 8/16
Make a model, number line, fraction strips
400

   3  is greater than, less than, or equal to   4

_____                                                  ______

   5                                                           5

Less than
400

Which operations should you use to solve this problem?

Matthew and his brother Shawn played swimming-pool-basketball. Each basket was worth 3 points. Matthew scored 9 points. Shawn scored 6 points. What is the total number of baskets made during this game?

Divide then add
400
456 rounded to the nearest hundred.
500
400

Daniel got in line for a roller coaster at 10:55 A.M. He got on the ride at 11:05 A.M. How long did Daniel wait in line?

10 minutes
400
Explain how you know that 67 rounded to the nearest ten is 70.
Because when rounding to the nearest ten you look to the right to the ones place.  If the number in the ones is 4 or less you let the ten rest at 60.  If the number in the ones is 5 or more you raise the score of the number in the tens to 70.  7 is more than 5 so it rounds up to 70.
500

Lauren and Gina's mother told her daughters they can swim in the pool for 20 minutes. First, they swam laps in the pool for 7 minutes. Then they swam underwater for one minute. Then they played water polo for 8 minutes.  How much longer can they stay in the pool? 

Add then subtract
500
678 rounded to the nearest ten.
680
500

Kurt rode his bicycle to the library. He left home at 11:35 A.M. and got to the library at 12:00 P.M. How long did the bicycle ride take?

25 minutes
500
Explain why 5/6 is greater than 5/8.
5/6 is greater than 5/8 because both numbers in the numerator are the same therefore you look at the denominators to compare.  The greater the number in the denominator, the smaller the pieces are so eigths is less than sixths.
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