Solving problems in real life often requires multiplication, so make sure you continue to practise your times tables until you know them off by heart! If you know that one box of pencils holds 12 pencils, how many pencils will 30 boxes hold? It's important to get to grips with this kind of problem.
Let's say you are the caterer for a large wedding. There will be 275 guests. Now, you know how many knives and forks you will need (and if you don't know, you'd better start learning your times tables quickly!), but each guest will be receiving a gift bag. In this bag will be 6 different items. It's up to you to supply these items. How many of each item will you need?
Give this 11-plus Maths quiz a go and see how well you do.
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First convert 24 m to centimetres: 24 × 100 = 2,400 cm. The number of revolutions (turns) = 2,400 ÷ 24 = 100. You have to divide by 24 because you want to find out how many 'lots' of 24 there are in 2,400: each 'lot' equals 1 turn: this is the same as adding 'lots' of 24 to itself until you get to 2,400
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The length and width of the field are the same because the sides of a square are the same. You need to find a number which when multiplied with itself gives 144 because area = length × width: 12 × 12 = 144
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There are 60 minutes in an hour. 60 ÷ 2 = 30. You have to divide 60 by 2 because you want to find out how many 'lots' of 2 there are in 60: each 'lot' equals 12 people: this is the same as adding 'lots' of 2 to itself until you get to 60. Thirty 'lots' means that 30 × 12 = 360 people are served every hour
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12 ÷ 2 = 6. You have to divide 12 by 2 because you want to find out how many 'lots' of 2 there are in 12: each 'lot' equals half a rotation: this is the same as adding 'lots' of 2 to itself until you get to 12. Six 'lots' means 6 × 0.5 = 3 complete rotations. DON'T forget, half a rotation = 180°
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First convert 4 m to centimetres: 4 × 100 = 400 cm. Folding in half four times, means that the length of the material decreases by a half four times:
400 ÷ 2 = 200 200 ÷ 2 = 100 100 ÷ 2 = 50 50 ÷ 2 = 25 This is the same as calculating 400 ÷ (2 × 2 × 2 × 2) = 400 ÷ 16 = 25 cm |
The number of boxes required = 96,000 ÷ 12 = 8,000. You have to divide 96,000 by 12 because you want to find out how many 'lots' of 12 there are in 96,000 : each 'lot' equals 1 box: this is the same as adding 'lots' of 12 to itself until you get to 96,000
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The brown box weighs eight times more than the black box which weigh 8 kg ? the brown box weighs 8 × 8 = 64 kg
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A single page weighs 785 ÷ 1,000 = 0.785 g. You have to divide 785 by 1,000 because you want to find out how many 'lots' of 1,000 there are in 785: each 'lot' equals 1 page
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2,778 km = 2,778 ÷ 5.556 = 500 leagues. You have to divide 2,778 by 5.556 because you want to find out how many 'lots' of 5.556 there are in 2,778 : each 'lot' equals 1 league: this is the same adding 'lots' of 5.556 to itself until you get to 2,778 . By the way, it's a great read!
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The number of sacks that can be filled = 1,250 ÷ 25 = 50 sacks. You have to divide 1,250 by 25 because you want to find out how many 'lots' of 25 there are in 1,250: each 'lot' equals 1 sack: this is the same as adding 'lots' of 25 to itself until you get to 1,250
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