The Common Core State Standards covered in Unit 2 are:

Pearley's field hockey uniform shows a 2digit number. The number is prime. If the digits are reversed, the number is still prime. The ones digit is 4 less than the tens digit. What number in on Pearley's uniform? 
Mr. Green, Mr. Black and Mr. Brown wear green, black and brown winter coats. "It's funny," says Mr. Green, "that none of our coats matches our names." "Big deal," says the man in the black coat. Who is wearing which coat? 
How many minutes are represented by each fraction of an hour? You can find answers by shading a clockface. 3/4 of an hour 2/3 of an hour 1/12 of an hour 1/5 of an hour 5/6 of an hour 
1/2 of the guests entered the sack race. There were 24 people at the picnic. How many people entered both races? 
Cordelia played her guitar for 1/3 of an hour in the morning and 1/2 an hour in the afternoon. Altogether, what part of an hour did she play the guitar? 
Grant went outside for an hour.He walked for 2/6 of an hour, ran for 2/8 of an hour and sat for the rest of the hour. What part of the hour did he sit? 
For each set of fractions, identify the pair which satisfies the given conditions. 

3/4, 3/8, 1/2, 2/3, 4/16 
The sum is 3/4 
1/2, 2/5, 4/8, 1/10, 3/10 
The sum is 1/2 
7/8, 1/2, 3/8, 3/4, 1/16 
The sum is 7/8 
1/7, 9/14, 3/7, 1/2, 2/7 
The sum is 1 1/7 
1/5, 3/10, 4/15, 3/5, 4/5 
The sum is 13/15 
Adding Fractions 
Subtracting Fractions 
Adding and Subtracting Fractions 
Adding and Subtracting Mixed Numbers 
Rounding mixed numbers  
Estimate Sums and Differences with Mixed Numbers 
Adding Mixed NumbersVideo  
Add Mixed Numbers in Online Practice 

Practice Online Adding of Mixed Numbers  
Add Mixed Numbers with Unlike Denominators 
Subtracting Mixed NumbersVideo  
Subtract Mixed Numbers in Online Practice  
Practice Online Subtracting of Mixed Numbers  
Subtract Mixed Numbers with Unlike Denominators 
Add and Subtract Mixed Numbers in Word Problems  
Add and Subtract Mixed NumbersStep by Step and a Quiz to Practice  
Adding and Subtracting Mixed FractionsExplanation and Practice ProblemsInteractive 
Adding and Subtracting Fractions Games 
Multiplying Fractions 
Multiply fractions and whole numbers I  
Multiply fractions and whole numbers II  
Multiply whole numbers and fractionsword problems  
Multiply a mixed number by a fractiononline practice 
Ratio Tables 
Fractions with clocks and money 
Fractions and moneyVIDEO 

Interactive clock fractions 

How to use the clock modelVIDEO 
Equivalent and Simplified Fractions 
Greatest Common Factor & Least Common Multiple 



Links to the math sites that we love! 