Grandmother had quite a bit of calculating to do for this because the problem required using decimals or common fractions and division and multiplication to help solve it.

Matthew Dogett (11) and James Henwood (12) recorded their answer as a fraction, 4331/3 grams. Helena Manning of Bebington and Christina Ivanova, of Malborough Primary School, recorded their answers as decimal fractions. But each of these people used a combination of fractions and decimals to arrive at their solutions.

Can you follow their thinking as they calculated the answer?

Matthew explained the procedure he used:

"I got my answer of 433 1/3 grams by putting the problem into an equation. These are the steps I took to get the answer:

1. First I did the sum 200g. +125g. which equalled 325g.
2. Then I wrote it down like this: 325g. + 1/4 pie = pie
   I then converted this to: 325g. + 1/4 pie = 4/4 pie (or one whole pie).
3. Next, I took 1/4 of a pie from each side leaving me with: 325g. = 3/4 pie.
4. I multiplied each side by 4 which came out as: 1300 = 3pie

   But Matthew only wanted to find the weight of one pie, so he did this last important step:

5. I divided each side by 3 and came to the final answer of: 433 1/3 grams = 1 pie."

Helena described her method this way:

"1/4 pie = 325g. divided by 3, which is 108.3g.
So, 4 * 1/4 of a pie = 4 *108.3g. or 433.2g.
433.2 grams is weight of a whole pie"