““Number Number SynonymsSynonyms””

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““Number Number SynonymsSynonyms””

Synonyms: Synonyms: words with the same or words with the same or similar meaningsimilar meaning

Number Synonyms: Number Synonyms: fractions, fractions, decimals, percentagedecimals, percentage

The number line: The number line:

A line showing equally spaced marks A line showing equally spaced marks named by numbers.named by numbers.

l l l l l l l l l l l l l l l l l l l l ll

0 1 2 3 4 5 6 7 8 9 100 1 2 3 4 5 6 7 8 9 10

Taking a Closer LookTaking a Closer Look l ll l

0 10 1

Let’s take a closer look at the space Let’s take a closer look at the space between 0 and 1. between 0 and 1.

Taking a Closer LookTaking a Closer Look l l ll l l l l l l l l

0 10 1

We find ‘parts’ of the whole number We find ‘parts’ of the whole number “1”. “1”.

Taking a Closer LookTaking a Closer Look

0 0 1 1

l l ll l l l l l l l l l l l l l l

l l l l

In this case we have divided this In this case we have divided this space into 10 equal parts.space into 10 equal parts.

Taking a Closer LookTaking a Closer Look

0 10 1

l l ll l l l l l l l l l l l l l l

ll l l0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1.01.0

we can use decimal numbers to we can use decimal numbers to name these spotsname these spots

Taking a Closer LookTaking a Closer Look

0 10 1

l l ll l l l l l l l ll l l l l l l l l l

00 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 1010

10 10 10 10 10 10 10 10 10 10 1010 10 10 10 10 10 10 10 10 10 10

or, we can use fraction numbers to or, we can use fraction numbers to name these spotsname these spots

Taking a Closer LookTaking a Closer Look

0 10 1

l l ll l l l l l l l l l l l l l l

ll l l 00 1 1 1 1 3 3 2 2 1 1 3 3 7 7 2 2 9 9 11

10 10 5 10 5 2 5 10 5 10 110 10 5 10 5 2 5 10 5 10 1

we can use reduced fraction we can use reduced fraction numbers to name these spotsnumbers to name these spots

Taking a Closer LookTaking a Closer Look

0 10 1

l l ll l l l l l l l ll l l l l l l l l l 00 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 90 90 100100

100 100 100 100 100 100 100 100 100 100 100100 100 100 100 100 100 100 100 100 100 100

or, we can use fraction numbers with a or, we can use fraction numbers with a denominator over 100denominator over 100

Taking a Closer LookTaking a Closer Look

0 10 1

l l ll l l l l l l l ll l l l l l l l ll

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

looking at parts of one out of 100 looking at parts of one out of 100 makes it very easy to name the parts makes it very easy to name the parts using percentage numbersusing percentage numbers

Taking a Closer LookTaking a Closer LookLooking at this altogether…Looking at this altogether… 0 0 1 1 l l ll l l l l l l l ll l l l l l l l

ll 0.0 0.1 0.2 0.3 0.4 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.6 0.7 0.8 0.9 1.0

00 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 1010 10 10 10 10 10 10 10 10 10 10 1010 10 10 10 10 10 10 10 10 10 10

00 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 90 90 100100

100 100 100 100 100 100 100 100 100 100 100100 100 100 100 100 100 100 100 100 100 100

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%