*This Math quiz is called 'Compare and Order Numbers 3' and it has been written by teachers to help you if you are studying the subject at elementary school. Playing educational quizzes is an enjoyable way to learn if you are in the 3rd, 4th or 5th grade - aged 8 to 11.*

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Ordering numbers is an important skill for the following reasons: you need to be able to arrange numbers in ascending and descending order, and you need to be able to understand what is meant by the magnitude (size) of a number.

Of course, when learning math you'll realize it's mostly about numbers. However, there are also mathematical terms that you won't come across elsewhere and these need to be understood in order to complete some calculations. As you move up the grades at school, be prepared to learn new words relating to math all the time.

1.

Which of the following is the biggest number: -2, -22, 0, -222?

0

-2

-222

-22

All the other numbers are negative, so zero is the biggest number. ZERO IS A NUMBER

2.

How would you arrange the following numbers in descending order: 2, 7, -4, 6, 0?

2, -4, 0, 6, 7

0, 2, -4, 6, 7

7, 6, 2, 0, -4

-4, 0, 2, 6, 7

'Descending order' means that the numbers decrease in size as you read from left to right

3.

How many times bigger than 2 is 16?

4

6

32

8

16 ÷ 2 = 8, so 16 is 8 times bigger than 2 because there are 8 lots of 2 in 16: 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 16

4.

What is wrong with this calculation: 0 + 4 - 4 = 8?

0 + 4 - 4 = 0

0 + 4 - 4 = 4

0 + 4 - 4 = -4

0 + 4 - 4 = -8

-4 + 4 = 0. Whenever you have two identical numbers that differ only in sign - they cancel each other out to give zero

5.

How would you arrange the following numbers in ascending order: 3, 7, 1, 0, -3?

-3, 0, 1, 3, 7

0, -3, 1, 3, 7

1, 0, 3, -3, 7

7, 3, 1, 0, -3

'Ascending order' means that the numbers increase in size as you read from left to right

6.

Starting from zero, if you keep on moving right along the number line, what happens to the numbers?

They become smaller and smaller negative numbers

They become larger and larger positive numbers

They finish quickly

They stop at zero if you go far enough

Let's hope that you didn't get this wrong! Remember that going RIGHT means positive numbers increasing. If you move LEFT starting from zero along the number line, the numbers become smaller and smaller negative numbers

7.

What number lies exactly halfway between 200 and 360?

260

300

280

270

Here's how you solve problems like this: add both numbers together THEN divide by two: (200 + 360) = 560. So, 560 ÷ 2 = 280

8.

How many times smaller than 27 is 3?

6

9

15

5

27 ÷ 3 = 9, so 27 is 9 times bigger than 3 because there are 9 lots of 3 in 27: 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 = 27

9.

Which number lies exactly between -50 and 50?

0

100

55

45

-50 + 50 = 0. Whenever you have two identical numbers that differ only in sign, they are at the same distance from zero on either side of the number line: zero then lies exactly in the middle

10.

Which of the following numbers is the largest: -6, 6, 0, -12?

-6

-12

0

6

6 is the only number greater than zero, so it is the largest

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