Solving problems in maths helps you think logically, plan your approach, and check your results — just like a computer programmer working out how to fix a tricky bug!
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You can find more about this topic by visiting BBC Bitesize - Problem solving
To work out the answer you have to add the three amounts together. 0.75 litres is the same as 750ml so 750 + 400 + 350 = 1,500ml which is the same as 1.5 litres
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To work this out first take 40 minutes from 50 leaving 10. Then take 3 hours from 16 leaving 13
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If there are 42 seats in every row then we multiply 42 by 32 to work out the answer
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200 ÷ 30 = 6 remainder 20cm. As 20cm is not long enough to make a bow, we can only make 6 bows
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There are 100cm in a metre so Dad is 183cm tall. 183 + 28 = 211 so the ceiling is 211cm tall. 211cm is the same as 2.11 metres
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To work this one out first divide 60 by 5 which is 12. Then Multiply 12 by 1.2 which is 14.4 so the car will use up 14.4 litres of fuel if it travels 60 miles. 14.4 litres subtracted from 20 litres leaves 5.6 litres still in the tank
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To calculate this 50 minutes x 2.5 = 125 minutes. Add another 50 minutes gives 175 minutes or 2 hours and 55 minutes
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This type of question needs to go backwards. The last step was to subtract 180 so add this back 300 + 180 = 480. To get here we had to multiply by 15 so we divide by 15 to get back to our original number
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Adding the numbers after the decimal points will help here. 0.2 + 0.8 = 1.0 so we know that the answer will end in .23
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100 - 34 = 66 so we know that the answer will end in .66. If we add 0.66 to 2.34 we get 3 so we still need another 3kg
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