intergers-t1

Walt: Use multiplication/division strategies to solve number problems

Strategies that we have can use:

Skip Counting

Example: Shelley has 6 bags of 5 netballs. How many does she have altogether? 5, 10, 15, 20. 25, 30

Repeated Addition: Same example as above

5+5+5+5+5+5=30

Known Facts: Same example as above

I know that 6 groups of 5 is the same as 6x5=30

Reversibility There are 30 netballs. They need to be put equally into 5 bags. How many netballs go into each bag? Instead of divide, I can use my multiplication facts. The answer is 6 because 5x6=30

Activity

Walt: Use multiplication/division strategies to solve number problems

Strategies that we have can use:

Skip Counting

Example: Shelley has 6 bags of 5 netballs. How many does she have altogether? 5, 10, 15, 20. 25, 30

Repeated Addition: Same example as above

5+5+5+5+5+5=30

Known Facts: Same example as above

I know that 6 groups of 5 is the same as 6x5=30

Reversibility There are 30 netballs. They need to be put equally into 5 bags. How many netballs go into each bag? Instead of divide, I can use my multiplication facts. The answer is 6 because 5x6=30

Activity One Activity Two

Walt: Use multiplication/division strategies to solve number problems

Strategies that we have can use:

Skip Counting

Example: Shelley has 6 bags of 5 netballs. How many does she have altogether? 5, 10, 15, 20. 25, 30

Repeated Addition: Same example as above

5+5+5+5+5+5=30

Known Facts: Same example as above

I know that 6 groups of 5 is the same as 6x5=30

Reversibility There are 30 netballs. They need to be put equally into 5 bags. How many netballs go into each bag? Instead of divide, I can use my multiplication facts. The answer is 6 because 5x6=30

Activity One

Walt: Use more than one strategy to solve number problems

Strategies that we have learned:

Place Value: Adding the tens and adding the ones

Example: Shelley has 38 marbles and collects another 25 more. How many does she have altogether? 30+20=50, 8+5=13, 50+13=63

Tidy Numbers: Take 2 from 25 and add it to the 38 to make 40 (a tidy ten). 25-2=23, so add 40+23=63

Equal Addition: David has $85. He bought a pair of new shoes that cost $28. How much money does he have left?

Add 2 to 28 to make 30. Remember: what you add to one side you must to another. This only works, when the number being subtracted ends with 7, 8 or 9.

Add 2 to 85 to make 87. So, 87-30=57. So the answer is: 57

Reversibility: Instead of subtracting - ADD

28+ __=85

28+7=35

35+50=85 the answer is 57. The numbers are in the middle.

Remember to show which strategies you have learned. Share and explain with a buddy your answers. Did you understand your buddies explaining? Did they understand you?

Integers Problem Solving

Walt: Use more than one strategy to solve number problems

Strategies to include:

Adding Tens and Ones

Making Tidy Number

Integers Problem Solving

Walt: Recognise and identify simple number patterns

Instructions Make a copy and complete your activity

Post your activity to your blog with 2-3 sentences that explain your learning

Links

Integers Number Patterns