Hint

Start by adding up the units, 9 + 3. That’s more than 9 so there will be a 10 to carry.

Hint

The denominators are the same (both 11) so you can simply subtract the numerators.

Example: 3/7 – 1/7 = 2/7

Hint

It will end in a zero because 2 x 5 = 10.

Hint

If you divide something by one, it doesn’t change it.

Hint

Your 11 times table can help you here.

Hint

Do this in two stages: 5 x 4 first and then multiply that by 10.

Hint

If you use column subtraction, be sure to line up the columns correctly so the 4 is above the 2.

Hint

You’ll need to multiply 6 by itself before you add the 10.

Hint

If you use column addition, be sure to line up the decimal points. It may be helpful to write 24.7 as 24.70.

Hint

This is an equation, so if you do the same to both sides, it still balances. If you add 10 to both sides, then the 10 on the left ‘disappears’,  (because 10 – 10 = 0) so you are left with the answer.

Hint

Can you divide 27 by 3?

Hint

Can you divide 54 by 9? What would you need to do then, to get the answer?

Hint

It might help to add up 15 + 15. That gets you halfway to 60.

Hint

Don’t be confused by the answer box being on the left. You still just have to subtract 855 from 5,776.

Hint

There are three parts to 3,050,020. Two parts have been shown to you. What is the third part?

Hint

If you use column subtraction then write 10 as 10.0 so you can align the columns. Another way to solve this is to take 6 from 10 and then add back 0.6 (because you were only asked to take 5.4 from 10).

Hint

The denominators are different so you need to find a common denominator before you can add these fractions.

Hint

When you divide a number by a hundred, all the digits shift two places to the right.

Hint

You might prefer to divide 1,000 by 4 and then multiply that by 3.

Hint

Don’t do this in your head, get some paper and write it out.  Show your working to your teacher who may give you an extra mark for a correct method, even if you get the answer wrong.

Hint

Perhaps work out 10% of 1,200 first, then double that to get 20%.

Hint

Don’t do this in your head, get some paper and write it out.  Show your working to your teacher who may give you an extra mark for a correct method, even if you get the answer wrong.

Hint

0.5 equals one half. Can you work out half of 28?

Hint

The denominators are different so you can’t just add the numerators.

One way to find a common denominator is to multiply the two denominators together. Example: 1/3 + 1/4. If you multiply the denominators you get 12. Next you multiply the numerators by the right amounts. One-third equals four-twelfths, and one-quarter equals three-twelfths. Now you can add these numerators, to get 4/12  +  3/12  =  7/12.

Hint

You can total up the quarters quite easily, but to add the 1 as well, you need to convert it into quarters too.

Hint

If you use column subtraction, you’ll need to write 6 as 6.000 so as to line up the columns.

Hint

3.9 x 30 is the same as 39 x 3 which somehow seems easier.

Hint

Can you convert the two-fifths into fifteenths? That’s a good place to start.

Hint

Don’t do this in your head, get some paper and write it out. Show your working to your teacher who may give you an extra mark for a correct method, even if you get the answer wrong.

Hint

This is the same as taking 1% of 200 away from 200. What is 1% of 200?

Hint

You can divide a fraction by multipying the denominator.

Example: 1/5 divided by 2 equals 1/10

Hint

You have to work this out in the right order. Division must be carried out before subtraction, when there are no brackets to tell you otherwise.

Hint

Think of this as 40 plus a half of 40.

Hint

A percentage is a fraction of 100. Example: 25% as a fraction is 25/100. 25% as a decimal is 0.25. First, write the percentage as a fraction or a decimal, then multiply by the quantity, which is 650 in this case. Do NOT include the % symbol in your answer.

Hint

Thirds and sevenths can’t be added or subtracted as they are so find a common denominator.

Hint

Don’t do this in your head, get some paper and write it out. Show your working to your teacher who may give you an extra mark for a correct method, even if you get the answer wrong.