This is the second of our Medium level Eleven Plus maths quizzes on Time. If you have played our previous quizzes then you will be familiar with solving Time problems by now. But how confident are you when it comes to longer periods, like decades, centuries and millennia? This quiz will put you to the test!
Some things to bear in mind:
There is quite a lot more I could tell you, but I just don’t have enough space here. But that’s alright – play the quiz and I’m certain that you will learn many more useful tips to help you in your exams.
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Add '1' to hundreds place position and you'll get the correct century: the 11th century. Similarly, the 1900s were in the 20th century, and we are now in the 21st century. If you count the centuries from the birth of Christ (AD or CE (Common Era)), you'll see why the century is always 1 more than the number of hundreds
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There are 12 months in a year and 100 years in a century, so we work this one out by multiplying 12 by 100: 12 x 100 = 1,200
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Leap years usually occur if the year is divisible by 4. However, in the case of centuries (1800, 1900, 2000, 2100 etc) the year must also be divisible by 400
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AD (Anno Domini – the Year of Our Lord) refers to dates after the birth of Christ and CE (Common Era) is an alternative. The changes were made because billions of people use the calendar, but less than a third of them are Christians
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A decade is ten years and a millennium is 1,000 years so to work this one out we divide 1,000 by 10: 1,000 ÷ 10 = 100
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There are 4 months between August 25th ad December 25th (Christmas Day). Two of them (August and October) have 31 days and two (September and November) have 30 days: 31 + 31 + 30 + 30 = 122
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44 + 55 = 99 BCE. However, Julius died before his birthday that year. If he had lived, he would have been 56 after his birthday. 56 + 44 = 100 BCE
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1837 + 64 = 1901. Remember: to find the century add 1 to the hundreds. 19 + 1 = 20.
Also remember, the century begins in years ending 01, not 00 so the 20th century began on January 1st, 1901 |
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There are 100 years in a century, and a leap-year every 4 years so you would expect there to be 25 leap years in a century. But, years ending with 00 must be divisible by 400 as well as by 4. So, some centuries have 24 leap years, and some have 25
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22 – 35 = -13. To find the baby’s birthday we must remove 13 days from September. September has 30 days so 30 – 13 = 17. The baby was born on September 17th
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