How_To_Be_Good_At_Math
179 Calculating with mixed units Sometimes you will have to do calculations Using a protractor different units. The easiest way ...
180 MEASUREMENT • THE VOLUMES OF SOLIDS MEASUREMENT •^ WORKING OUT VOLUME WITH A FORMULA Look at this sugar cube. Each side of t ...
MEASUREMENT • THE VOLUMES OF SOLIDS MEASUREMENT • WORKING OUT VOLUME WITH A FORMULA 181 The volume of a cuboid can be written li ...
182 MEASUREMENT • MASS Mass Mass is the amount of matter, or material, contained within an object. We can measure mass using met ...
Mass and weight Mass and weight We often use the word weight when we mean mass but they’re not actually the same. Weight is how ...
Calculating with mass Calculating with mass We can do calculations with mass in the same way that we do with lengths and other m ...
MEASUREMENT • CALCULATING WITH MASS 185 To change 85 g to kilograms, we just divide by 1000: 85 ÷ 1000 = 0.085 kg Now it’s much ...
186 MEASUREMENT •^ TEMPERATURE Temperature Temperature is a measure of how hot or cold something is. We measure it using a therm ...
temperature Calculating with World weather In Sweden, the average temperature in February is −3°C. If it’s 29°C hotter in India, ...
188 Imperial units We’ve looked at the units we use to measure things in the metric system. In some countries, a different syste ...
MEASUREMENT • IMPERIAL UNITS MEASUREMENT • IMPERIAL UNITS 189 Converting between the imperial and metric systems We have learned ...
190 Imperial units of length, volume, and mass Just like the metric system, the imperial system has many different units that we ...
191 We can measure the mass of very light things in an imperial unit called ounces. This bird has a mass of 3 ounces. We can als ...
192 Types of 3D shape Not all clocks look like the one above. Some clocks don’t have hands at all. Others show all 24 hours in t ...
Telling the time Reading the time We describe the time by saying which hour of the day it is and how many minutes of that hour h ...
194 How long is a month? To help us calculate with time, it’s useful to know how many days there are in each month. Most of the ...
MEASUREMENT • DATES MEASUREMENT • DATES 195 January 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 M ...
196 It’s simple to add, subtract, multiply, or divide an amount of time. As with other measurements, we just need to make sure t ...
Calculating with time Comparing time with mixed units Sometimes we’re asked to calculate times that are in a mixture of units. W ...
198 Money Understanding money helps us to work out how expensive things are and check our change when we go shopping. Lots of sy ...
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