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Each week in your Maths home learning there will be two different types of activities.  There will be a main key objective and a Maths fluency key objective.  The main objective this week is to add and take away fractions with different denominators.  The Maths fluency key objective is to recall metric conversions.  Remember to keep working on your times tables using Times Tables Rockstars.

There are fraction activities available in the homework section on Education City.  In addition have a look at the fractions activities on the Mathletics website.

 

Each Friday we will post the answers to the challenges.

 

KO: to add and subtract fractions with different denominators

To help you understand more about adding and subtracting fractions with different denominators there is a video.  There are some questions for the children to work through and also a quiz for the children to work out too.

 

Please click on the link below to the images to access the webpage.

 

 

Remember, the numerator is the number above the line in a fraction and the denominator is the number below the line. 

 

When you are answering the question you need to start by finding the common multiple of the denominators.  So for the first question;

 

2/3 + 1/6 = 

6 is the common multiple of 3 and 6 (it is in both the 3 and 6 times tables).  As I have multiplied the denominator of the first fraction, 3 by 2 to make 6,  I need to multiply the numerator by 2 also. 

 

4/6 + 1/6 = 5/6

 

 

When you are answering the question you need to start by finding the common multiple of all three denominators.  So for the first question;

 

1/2 + 1/4 + 1/8= 

8 is the common multiple of 2, 4 and 8 (it is in the 2, 4 and 8 times tables).  In the first fraction I need to multiply the denominator, 2 by 4 to make 8. So, I need to multiply the numerator by 4 also.  In the second fraction I need to multiply the denominator, 4 by 2 to make 8. So, I need to multiply the numerator by 2 also.

 

4/8 + 2/8 + 1/8 = 7/8

 

Answers

KO: to recall metric conversions

The metric system is used to measure length, weight and volume (the amount of liquid).  For this week please can you convert each measurement correctly. You can ask an adult or use the internet to help you.

 

1. 10 (millimetres) mm = _____ (centimetres) cm

 

2. 100 cm = ___________ (metres) m

 

3. 1 m = _________ mm

 

4. 1000 m =___________ (kilometres) km

 

5. 1 km = ___________ cm

 

6. 1000 (grams) gm = _________ (kilograms) kg

 

7. 1000 (millilitres) ml = _________ (litres) l

Answers

 

1. 10 (millimetres) mm = 1 (centimetres) cm

 

2. 100 cm = (metres) m

 

3. 1 m = 1,000 mm

 

4. 1000 m = (kilometres) km

 

5. 1 km =  100,000 cm

 

6. 1000 (grams) gm = 1 (kilograms) kg

 

7. 1000 (millilitres) ml = 1 (litres) l

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