This term we have been learning about addition and subtraction strategies.

In addition, some strategies we have been practising are:

- Bridge to ten – where you add to the closest ten
- Using the algorithm where you add the ones first and you might need to rename.
- Splitting a number into an easier number to add. For example splitting a number into tens and ones then adding them together.
- Using the number line to add easier numbers.
- Counting on by ones
- Skip counting by 2s, 3s, 4s and so on.

In subtraction, some strategies we have been practising are:

- Algorithm where you take away the ones first and then you may need to rename.
- Counting backwards by a counting pattern
- Adding on from a smaller number
- Using estimation to check our answers
- Taking away the ones and then tens

**What other strategies do you know? What else do you know about addition and subtraction? How might you use this in real life? **

Dear 34W

l have have not much strategies to tell,but l have used some strategies in real life,for example when l got a book and l have some maths problems in there(l know it is weird,but there is some books that have maths problem)and l always use Bridge to ten.

From Gillian

Dear 3/4W

Addition is super useful when you are using money you might need to also use subtraction if you are giving someone change.I normally use algorithm.

From Tara

Dear 3/4W

I don’t really have that much strategy but i do have some one is abacus and algorithm i have been learning abacus for 4 Years

-Lucas

Dear 3/4W

I know how to skip count by 4’s, 5’s, 2’s, 3’s and so on. I can also use my time tables facts for example 4+4+4 will equal 3 groups of 4. I also know other ways to work out addition and subtraction like bridge to ten. I think these strategies are really useful.

From Evan

Dear 3/4W

I use division for subtraction like 16-4-4-4=4 like 16 divide by 4 equals 4. I can also skip count by 2’s, 3’s, 4’s and so on. I think subtraction is very fun.

From Evan

Dear 3/4w,

You use subtraction to give people change and you use addition to add your money together.

From Georgie

Dear 3/4W,

My strategy is subtracting the ones first then if I need to I drag over to get my answer.

From Amira

Dear 3/4W

I learnt the split strategy it was really usesful because it helped me work out hard sums! 😀 🙂 😀 🙂

From, Charlie