Place Value

WALT: -Demonstrate use of new knowledge about place value.
          -Add and subtract decimals to 3 decimal places.



This week in maths, we learnt about place value and adding and subtracting decimals. One thing that I enjoyed was 'the number conundrum'. I did a practise round before the one that you saw. With that, I didn't go so well. I found it a bit challenging at  first but the second one, I was spot on!

Thinkboard - Week 6

WALT: Add and subtract decimals.

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This week we were given this think-board. The whole think-board is based around subtracting decimals. What I learnt is that when using partitioning for subtracting decimals, never spilt up the first number. I learnt never spilt up the first number but spilt up the second. For example: 2.534 - 1.112=?

2.534 - 1= 1.543

1.543 - 0.1=1.443

1.443 - 0.01=1.433

1.433 - 0.002=1.431

So the answer would be 1.431. Please comment to see what I did with the subtracting and partition. 

Thinkboard - Week 4

WALT: Add and Subtract decimals.

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This week we focused our learning around subtracting decimals. Something I learnt this week is to never split up the first number of the equation, while partitioning. For example: 2.867 - 0.242 would equal to 2.625. This is how I solved it.

2.867-0.002=2.865

2.865-0.04=2.825

2.825-0.2=2.652

So the answer is 2.625. As you can see I split the second number and left the first number, the same.