Word Problems to Try

Kyle walked to the shop to buy his favourite rice crackers. They were $2.97 to buy. He got $4.35 worth of lollies too. How much did Kyle spend at the shop?


Ashleigh broke Miss Canny's phone. She had $274 in her bank account and had to borrow $331 to buy Miss C a new Iphone. How much did Ashleigh pay for the phone?

AC/EA

This strategy teaches you to solve addition and subtraction problems by combining and separating tens and ones.
For example:
24 + 41=
First you separate the 10's and add them together:
20 + 40=60
Then you need to add the 1's together:
4 + 1= 5
Lastly you add the two answers together:
60 + 5=65

Here are some ones for you to try at home:

1. 25 + 35=
2. 35 + 33=
3. 66 + 77=

You can also use this strategy to work out subtraction problems.
For example:
64 - 32=
First you have to subtract the 10's from each other:
60 - 30=30
Then you have to subtract the 1's from each other:
4 - 2= 2
Lastly you add the two answers together:
30 + 2= 32

Try these ones out for yourself:

1. 78 - 47=
2. 96 - 60=
3. 99 - 83=

Good Luck from Tahi Maths Group!

Rules for Adding and Subtracting Integers

Adding Integers

(+) + (+) = positive (add the absolute values)

(-) + (-) = negative (add the absolute values)

(+) + (-) = ? (subtract the absolute values)

(-) + (+) = ? (subtract the absolute values)

Note: (+) means positive, (-) means negative, and (?) represents the sign of the greatest number in absolute value

Subtracting Integers

(+) - (+) = (+) + (-)= ? (subtract the absolute values)

(-) - (-) = (-) + (+)= ? (subtract the absolute values)

(+) - (-) = (+) + (+)= (+) (add the absolute values)

(-) - (+) = (-) + (-)= (-) (add the absolute values)