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Primary Maths · Year 4Chapter 6 · Decimals and money
Year 4 · Tenths, Hundredths and Money · Lesson 6.6

Year 4: Money: pounds and pence

Part of the Year 4 tenths, hundredths and money chapter. Chapter overview · whole chapter on one page · Download worksheet (PDF) · Answers (PDF)

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6.6

Money: pounds and pence

Year 4
Pounds and pence, Writing, converting and comparing money, Estimate and compare money

In the UK we use pounds (£) and pence (p). 100 pence make 1 pound. These are the coins: 1p, 2p, 5p, 10p, 20p, 50p, £1 and £2.

1p2p5p10p20p50p£1£2
The coins. The 20p and 50p coins have 7 sides.

And these are the notes: £5, £10, £20 and £50.

£5£10£20£50
The notes.

Writing money. Money is a decimal. The pounds go before the decimal point and the pence go after it, with two digits. Three pounds and five pence is £3.05, not £3.5 (that would be £3.50). Forty-five pence can be written as 45p or as £0.45. Never write both a £ sign and a p, like £0.45p.

pencil45pbook£3.05ruler£1.20bag£12.99
Price tags. £3.05 means 3 pounds and 5 pence.

Changing between pounds and pence. To change pounds to pence, multiply by 100: £2.07 = 207p. To change pence to pounds, divide by 100 (the digits move two places to the right, as in Section 6.4): 345p = £3.45. 7p = £0.07 (you need the 0 in the tenths place).

Adding up coins. Count how much each kind of coin is worth in pence, then add the amounts.

£150p20p20p10p5p2p
100p + 50p + 20p + 20p + 10p + 5p + 2p = 207p = £2.07.

Comparing money. To compare amounts, change them to the same unit first. £3.40 and 304p: £3.40 = 340p. 340p is more than 304p, so £3.40 > 304p. Fewest coins. To make an amount with the fewest coins, take the biggest coin that fits, then the biggest coin that fits what is left, and so on.

Key words. Pence (p) are small amounts of money. Pounds (£) are bigger. Change to a different unit means to write the same amount in another unit.

Key ideas

  • 100p = £1.
  • Money has two digits after the decimal point: £3.05, £4.50.
  • Pence to pounds: divide by 100. Pounds to pence: multiply by 100.
  • 7p = £0.07, not £0.7. And £4.5 should be £4.50.
  • Never write £ and p together.
  • To compare money, change everything to pence first.
Worked example 6.6.1
How much money is shown? Write the total in pounds.
£150p20p20p10p5p2p

Key words. Pence (p) are small amounts of money: 100p = £1. Change is the money you get back when you pay with more than the cost. The total is all the amounts added together.

Method. Count how much each kind of coin or note is worth in pence. Add the amounts. Then write the total in pounds and pence.

  1. Count each kind of note and coin. Group the same ones together. Change each group into pence.
    1 × £1 = 100p
    1 × 50p = 50p
    2 × 20p = 40p
    1 × 10p = 10p
    1 × 5p = 5p
    1 × 2p = 2p
  2. Add the groups, biggest first. Adding the big amounts first is easier. Keep a running total.
    100p
    100p + 50p = 150p
    150p + 40p = 190p
    190p + 10p = 200p
    200p + 5p = 205p
    205p + 2p = 207p
  3. Write the total. 100p = £1, so change to pounds and pence if it is 100p or more.
    207p = £2.07

Check. Add in a different order, smallest first: 2p + 5p + 10p + 20p + 20p + 50p + 100p = 207p. ✓

Watch out. Change everything to pence first. Do not add pounds and pence together as if they were the same.

Worked example 6.6.2
Write 345p in pounds.

Key words. Pence (p) are small amounts of money: 100p = £1. Change is the money you get back when you pay with more than the cost. The total is all the amounts added together.

Method. Divide the pence by 100 to find the pounds. The pence left over go after the decimal point, with two digits.

  1. Remember: 100 pence make 1 pound. So we divide the pence by 100 to find the pounds.
    345 ÷ 100 = 3 remainder 45
  2. Write the pounds and the pence. 3 pounds and 45p.
    3 pounds and 45p
  3. Put them together with a decimal point. The pence always get two digits after the decimal point.
    £3.45

Check. Go back: £3.45 = 3 × 100 + 45 = 345p. ✓

Watch out. Money always has two digits after the decimal point.

Worked example 6.6.3
Write 7p in pounds.

Key words. Pence (p) are small amounts of money: 100p = £1. Change is the money you get back when you pay with more than the cost. The total is all the amounts added together.

Method. Divide the pence by 100 to find the pounds. The pence left over go after the decimal point, with two digits.

  1. Remember: 100 pence make 1 pound. So we divide the pence by 100 to find the pounds.
    7 ÷ 100 = 0 remainder 7
  2. Write the pounds and the pence. The amount is less than 100p, so there are no whole pounds.
    0 pounds and 7p
  3. Put them together with a decimal point. The pence always get TWO digits: write a 0 in front if there is only one.
    £0.07   (the 0 holds the tens-of-pence place)

Check. Go back: £0.07 = 0 × 100 + 7 = 7p. ✓

Watch out. Do not write £0.7: money always has two digits after the point.

Worked example 6.6.4
Write £2.07 in pence.

Key words. Pence (p) are small amounts of money: 100p = £1. Change is the money you get back when you pay with more than the cost. The total is all the amounts added together.

Method. Multiply the pounds by 100 and add the pence.

  1. Remember: 1 pound is 100 pence. So we multiply the pounds by 100.
    2 × 100 = 200p
  2. Add the pence. The two digits after the decimal point are the pence.
    200p + 7p = 207p
  3. Write the answer with the unit p. Pence are written with a small p after the number.
    £2.07 = 207p

Check. Go back: 207p ÷ 100 = £2.07. ✓

Watch out. £2.07 is 207p, not 27p: if the pence are less than 10, put a 0 in: £2.07 = 207p.

Worked example 6.6.5
Write < or > in the box.   £3.40  [ ]   304p

Key words. Pence (p) are small amounts of money: 100p = £1. Change is the money you get back when you pay with more than the cost. The total is all the amounts added together.

Method. Change both amounts into the same unit (pence). Then compare the numbers.

  1. Change both amounts to pence. We can only compare money when it is in the same unit. To change pounds to pence, multiply by 100.
    £3.40 = 340p  (£3 × 100 + 40 = 340)
    304p = 304p
  2. Compare the numbers of pence. The bigger number of pence is the bigger amount.
    340 > 304
  3. Write the answer.
    £3.40 > 304p

Check. Picture £3.40 and 304p as coins: more money in the first. ✓

Watch out. Do not compare 3.40 with 304 as they are. Change to the same unit first: 340p and 304p.

Worked example 6.6.6
Write these amounts in order, smallest first.   £1.20,   95p,   £1.05,   110p

Key words. Pence (p) are small amounts of money: 100p = £1. Change is the money you get back when you pay with more than the cost. The total is all the amounts added together.

Method. Change every amount to pence. Put the numbers in order. Then write the amounts the way they were first written.

  1. Change every amount to pence. The amounts are in different units, so we change them all to pence (£1 = 100p).
    £1.20 = 120p
    95p = 95p
    £1.05 = 105p
    110p = 110p
  2. Put the numbers of pence in order. We want smallest first.
    95p, 105p, 110p, 120p
  3. Write the original amounts in that order. Use the way each amount was written in the question.
    95p,  £1.05,  110p,  £1.20

Check. Count them: 4 amounts in the question and 4 in the answer. ✓

Watch out. Do not mix up pence and pounds: 95p is less than £1.05 even though 95 is bigger than 1.05.

Worked example 6.6.7
What are the fewest coins that make £1.87?

Key words. Pence (p) are small amounts of money: 100p = £1. Change is the money you get back when you pay with more than the cost. The total is all the amounts added together.

Method. Start with the biggest coin that fits. Take it away, then do the same with what is left. Keep going until nothing is left.

  1. Take the biggest coin that is not more than 187p. Using the biggest coins each time gives the fewest coins.
    Take £1.   187p − 100p = 87p left
  2. Take the biggest coin that is not more than 87p. Using the biggest coins each time gives the fewest coins.
    Take 50p.   87p − 50p = 37p left
  3. Take the biggest coin that is not more than 37p. Using the biggest coins each time gives the fewest coins.
    Take 20p.   37p − 20p = 17p left
  4. Take the biggest coin that is not more than 17p. Using the biggest coins each time gives the fewest coins.
    Take 10p.   17p − 10p = 7p left
  5. Take the biggest coin that is not more than 7p. Using the biggest coins each time gives the fewest coins.
    Take 5p.   7p − 5p = 2p left
  6. Take the biggest coin that is not more than 2p. Using the biggest coins each time gives the fewest coins.
    Take 2p.   2p − 2p = 0p left
  7. Write the coins. Check the amount: they should add up to £1.87.
    £1, 50p, 20p, 10p, 5p, 2p (6 coins)

Check. Add the coins: 100p + 50p + 20p + 10p + 5p + 2p = 187p = £1.87. ✓

Watch out. Do not use lots of small coins. Always take the biggest coin that fits.

Watch out

Two digits for the pence. £5.05 is 5 pounds and 5 pence. £5.5 would mean £5.50. And when you compare, do not compare 95 with 1.05 as they are: change to the same unit. 95p is LESS than £1.05 even though 95 is a bigger number than 1.05.

Exercise 6F  Money: pounds and pence

Non-calculator
1
FHow much money is shown? Write each total using £ or p.
(a)
50p20p10p5p2p1p
Total =
(b)
£2£150p50p20p
Total =
(c)
£10£5£120p20p5p
Total =
2
FQuick-fire! Write each amount in pounds.
(a)250p =
(b)605p =
(c)90p =
(d)7p =
(e)1205p =
(f)480p =
3
FQuick-fire! Write each amount in pence.
(a)£4.20 =
(b)£0.65 =
(c)£6.05 =
(d)£0.08 =
(e)£12.30 =
(f)£3.00 =
4
FWrite each amount using a pound sign and a decimal point.
(a)3 pounds and 40 pence =
(b)5 pounds and 5 pence =
(c)65 pence =
(d)12 pounds and 9 pence =
5
FEach amount is written wrongly. Write it correctly.
(a)£4.5 (meant: four pounds fifty) should be
(b)£5.5 (meant: five pounds five pence) should be
(c)£0.45p (meant: forty-five pence) should be
(d)£20.3 (meant: twenty pounds thirty pence) should be
6
FWrite <, > or = in each box.
(a)£2.50  [ ]   250p
(b)£3.05  [ ]   350p
(c)99p  [ ]   £1.00
(d)£1.75  [ ]   157p
(e)£0.60  [ ]   6p
7
FWrite the amounts in order.
(a)Smallest first: £2.50,  199p,  £2.05,  90p
(b)Biggest first: £3.05,  £0.03,  35p,  350p
8
FLook at the price tags.
pen85pbook£2.40ruler£1.15rubber60p
(a)Which item costs the most?
(b)Which item costs the least?
(c)Write the prices in order, biggest first.
9
FWrite the fewest coins that make each amount.
(a)38p =
(b)74p =
(c)£1.43 =
10
FHow many coins make each total?
(a)How many 20p coins make £3?
(b)How many 50p coins make £8?
(c)How many 5p coins make £2?
11
PSZainab has a piggy bank with 2 £1 coins, 3 50p coins, 5 20p coins and 4 10p coins. How much money is in the piggy bank?
£1£150p50p50p20p20p20p20p20p10p10p10p10p
12
RMei says, “I can make exactly 47p using only 5p coins and 10p coins.” Is she right? Explain.
13
RJack has 3 coins. They are worth exactly 35p in total. Which three coins does he have?
14
RShow three different ways to make £1 using exactly five coins.

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