Lesson 1.
OPERATIONS WITH NATURAL NUMBERS
Addition and subtraction with natural numbers.
Objective: To recognize and use natural numbers to solve mathematical operations in everyday life.
Keywords: Natural numbers, addition,subtraction,addends, product, minuend, subtrahend.
VOCABULARY
|
N° |
English |
Spanish |
|
|
|
|
|
1. |
Addends |
sumandos |
|
2. |
Adding |
sumando |
|
3. |
Belong |
pertenecer |
|
4. |
Counting |
contar |
|
5. |
Difference |
diferencia |
|
6. |
Equal |
igual |
|
7. |
Following |
siguiente |
|
8. |
Minuend |
minuendo |
|
9. |
Product |
producto |
|
10. |
Sum |
suma |
|
11. |
Subtract |
restar |
|
12. |
Subtrahend |
sustraendo |
|
13. |
Sourt out |
clasificar |
|
14. |
With out |
sin |
Lesson plan n°1 – Spanish version
What is a natural number?
Natural number is a part of the number system which includes all the positive integers
from 1 to infinity. They are used for counting.
It
does not include zero (0).But, when we combine 0 with a positive number such as
10, 20, etc. It
becomes a natural number.
Number Line of Natural Numbers
Let’s learn about addition and subtraction with natural numbers.
Addition
Addition is taking
two or more numbers and adding them together, that is to say, it is the total sum of 2
or more numbers.
For example:
Subtraction
To subtract means to take away from a group or a number of
things. When we subtract, the number of things in the group is reduced or become less.
For example:
And with elements or things is the same process.
