,Question 1
1.1.1. If a lesser symbol is before a greater symbol, the lessor is subtracted from the greater.
1
I–1 IV = 5-1
V–5 =4
It can also be read as ‘one less than five’.
1.1.2. If a lessor symbol is after a greater symbol, the two values are added.
V–5 VI = 5 + 1
I–1 =6
1.1.3. If a smaller numeral is placed between two larger numerals, add the two greater
numerals together, then subtract the smaller numeral from the total.
X – 10 XIX = (10 + 10) - 1
I–1 = 19
X – 10
1.1.4. Add and/or subtract any other numeral according to its placement.
L – 50 LXIV = (50 +10) + (5-1)
X – 10 = 64
I–1
V–5
1.1.5. Add and/or subtract any other numeral according to its placement.
X – 10 XCIX = (100 – 10) + (10-1)
C – 100 = 99
I–1
X – 10
, 1.2. Numeral system: Hindu – Arabic numerals
1.3. 5 Characteristics of Hindu- Arabic numerals:
- It groups by ten.
- It uses a place value.
- They represent numbers in the decimal number system.
- It uses 10 digits or symbols that can be used in combination to represent all possible
numbers.
- Because it has a zero symbol the benefits are that addition, subtraction, division and
multiplications operation’s easier to be executed.
Terms of the power of 10: 54069,269 = 5.104 + 4.103 + 0.102 + 6.101 + 9.100 + 2.10-1 + 6.10-2 +
9.10-3
1.6. Real numbers: Is a way of organising distinct types of numbers, as the concept of what
is meant by the word “number” became better defined. Example, how many heads of cattle
a person owned.
Non-real numbers: a non-real number is a number that, when multiplied by itself, it
produces a negative number. Example, the square of 3i is -9.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller smillanih. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.00. You're not tied to anything after your purchase.