SATS How To...
Welcome to the all new SATS How-to page. Here we will teach you valuble techniques that can be applied in your Maths, English & Science SATS exams, whatever the level. Forgotten how to convert a fraction? Unsure about how to plan an essay? Then the SATS How-to is for you!
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| How to deal with imperial units |
Imperial units
We mainly use metric measures, but there are some older units called imperial units that we sometimes use. For example, road signs always give distances in miles rather than kilometres
Here are the rough approximations between metric and imperial units for lengths, weights and capacities:
12 inches = 1 foot
16 ounces = 1 pound
8 pints = 1 gallon
2½ cm = 1 inch
25g = 1 ounce
1 litre = 1¾ pints
30 cm = 1 foot
2¼ pounds = 1kg
4½ litres = 1 gallon
The area is the amount of surface a 2D shape covers. To work out the area of a shape, multiply its length by its breadth. The units we use to measure an area include square centimetres (cm²), square metres (m²) and square kilometres (km²).
It is more difficult to measure the area of irregular shapes. Look at the shape:
(picture)
To measure its area:
- Count the squares that are wholly within the shape. 1, 2
- Squares that are half or more in the shape count as whole ones. 3, 4, 5, 6, 7, 8, 9, 10
- Don't count squares that are less than half in the shape.
- So the area is approximately 10cm² |
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