OPERASI BILANGAN BULAT
18
Hello Everybody, Welcome Mathematics’s Lesson. Here we use powerpoint to continue our lesson. In this lesson we will learn about integers. In slide, we have four button. The first button is Definition, we can see what is definition of integers The second button is Discussion, we can see what is discussion of integers The third button is Example, we can see what is example of integers And last button is Exercise, we can see what is exersices of integers and we also can check which our score after we answer that exercises. DEFINITIO N DISCUSSION EXAMPLE EXERCISE
-
Upload
dewi-rawani -
Category
Education
-
view
159 -
download
1
Transcript of OPERASI BILANGAN BULAT
Hello Everybody,Welcome Mathematics’s Lesson. Here we use powerpoint to continue our lesson. In this lesson we will learn about integers.
In slide, we have four button. The first button is Definition, we can see what is definition of integersThe second button is Discussion, we can see what is discussion of integersThe third button is Example, we can see what is example of integersAnd last button is Exercise, we can see what is exersices of integers and we also can check which our score after we answer that exercises.
DEFINITION
DISCUSSION
EXAMPLE
EXERCISE
DEFINISION OF INTEGERS An integers pronounced In-tuh-jers
An integers are zero, all positive and negative whole numbers without a fractional or decimal component.
The set of integers using symbol ℤ. ℤ usually we can called zahlen ℤ : {......, -3, -2, -1, 0, 1, 2, 3,......}
ZERO
NEGATIVE NUMBER (-), semakin mengecil POSITIVE NUMBER (+), semakin membesar
DISCUSSION
ADDING INTEGERS
COMPARING INTEGERS
SUBTRACTING INTEGRES
EXAMPLE
ADDING INTEGERS
SUBTRACTING INTEGRES
INSTRUCTION
COMPARING INTEGERS
The integer line can be used to compared integers3 is to the right of 2Therefore.....3 is greater than 2
Written..... 3 > 2
The integer line can be used to compare integers......
Let’s look at two integers on the integer line:We can see that -3 is to the left of 1Therefore:-3 < 1
ADDING INTEGERS Untuk sembarang bilangan
bulat a dan b berlaku:1. –a + (-b) = -(a+b)2. -a + b = -(a-b) if a more than b3. -a + b = b - a if b more than
a
SIFAT-SIFAT 1. Komutatif (Pertukaran) a + b = b + a2. Asosiatif ( Pengelompokkan) (a+b)+c = a + (b+c)3. Tertutup a + b = c , dimana c adalah
bilangan bulat4. Unsur Identitas a + 0 = 0 + a = a
SUBTRACTING INTEGRESUntuk setiap bilangan bulat a dan b, maka berlaku a – b = a +(-b)
SIFAT-SIFAT 1. Tertutup a – b = c, dimana c adalah
bilangan bulat
Integers occur frequently in everyday life
Positive Integers Indicate height above sea level. The airplane is 80 meter above sea level.
Negative IntegersIndicate height below sea level. There is a100 meters below sea level.
--
ADDING AND SUBTRACTING TWO INTEGERS (pendekatan model garis bilangan maju-mundur)
INTEGERS
POSITIVE MAJU
ZERO DIAM
NEGATIVE MUNDUR
OperasiADDING TERUS
SUBTRACTING BALIK ARAHBy Adi Wijaya
Hitung 2 + 3
3
Jadi, 2 + 3 = 5
2
10-1 2-2 3-3 4-4 5-5
10-1 2-2 3-3 4-4 5-5
Hitung 2 + (–3)
– 3
Jadi, 2 + (–3) = –1
2
10-1 2-2 3-3 4-4 5-5
Hitung –2 + (– 3)
– 3
Jadi, – 2 + (– 3) = – 5
-2
10-1 2-2 3-3 4-4 5-5
Hitung 2 – 3
2
3
Jadi, 2 – 3 = –1
10-1 2-2 3-3 4-4 5-53
Jadi, 2 – (– 3 ) = 5
2
Hitung 2 – (–3)
1. Hitunglah penjumlahan bilangan bulat berikut ini - 36 + ( - 58) = ...........
A
B DC 94
22
-22 -94
EXERCISE
2. Suhu sebongkah es mula-mula 5° C. Dua jam kemudian suhunya turun 7°C. Suhu es itu sekarang adalah .......
A
B D
C -12° C
-2° C 12° C
2° C
3. Hitunglah perkalian berikut ini -6 + (-10) =..........
A 16
60B
C -16
D -60
4. Tentukan hasil pembagian dari -18 + 15 = ..........
A
B D
C3
-3
33
-33
CHECK YOUR SCORE
