Cara Perkalian Cepat dan Mudah

Pada perkalian bilangan umumnya menggunakan mengalikan kebawah, adapun cara perkalian yang lain lebih cepat dan mudah dipahami bisa dilihat dibawah ini. Kita akan coba mengalikan perkalian belasan terlebih dahulu. Misal : 12 x 12 berapakah hasil perkalian dari 12 dikalikan 12??

Cara kebawah:

12

13 x

36

12 +

156

Jadi, 12 x 13 = 156

Sekarang kita pergunakan perkalian cepatnya.

12 x 13 = ?

Perhatikan rumus dibawah ini…

Pertama kita hitung yang sebelah kanan/ujung dahulu {ujung dikalikan ujung = 2 x 3 sama dengan 6}, dan

Kedua 12 ditambahkan 3 { 12 ditambah angka yang ujung 3} sama dengan 15

Jadi 12 x 13 = {15} {6} ==> 156

Cukup jelas bukan,, sekarang anda lanjutkan latihan soal yang lainnya…

Mencari FPB dan KPK cara cepat dan mudah

Perngertian dari KPK dan FPB yakni:

KPK = Kelipatan Persekutuan TerKecil

FPB = Faktor Persekutuan TerBesar

Namun yang lebih singkatnya dalam pengertiannya KPK yakni bilangan yang bisa dibagi dan FPB bilangan yang bisa membagi. Maksudnya yakni bilangan FPB bisa Membagi KPK dan KPK bisa dibagi FPB.

Dalam pencarian FPB dan KPK biasanya menggunakan pola pohon faktor. Namun kini kita coba menggunakan pola 10 kali lebih cepat dari cara yang biasa. Pola ini dinamakan pola Dahsyat. Misalkan contoh:

Carilah FPB dan KPK dari 12 dan 16

Cara Pohon Faktornya yakni:

12 = 2 x 2 x 3 = 2² x 3

16 = 2 x 2 x 2 x 2 = 2⁴

FPB-nya: cari yang sama dan pangkat terkecil

jadi: 2² = 4, FPBnya adalah 4

KPKnya: cari yang sama, pangkat terbesar dan sisanya

jadi : 2⁴ x 3 = 16 x 3 = 48, KPKnya adalah 48

Kemudian sekarang dengan cara cepatnya

Rumus:

FPB: yang besar dibagi yang kecil, sisanya itu FPB

KPK: yang besar dikali yang kecil dibagi FPB

FPB dan KPK dari 12 dan 16

FPB = 16 dibagi 12 , dapat 1 sisa 4 dan FPBnya adalah 4

KPK = 16 x 12 : 4 = 16 x 3 = 48

Mudah bukan…!!!

Silahkan kerjakan soal-soal yang lain dibuku pelajaran anda…!!! <!–[if gte vml 1]>

12√16 = 1       12         4

FPB

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Bekasi Education Budget 38 Percent Next Year

The education sector in the city of Bekasi, West Java, the main priority of the local government with budget funds dialokasikannya which reaches 38 percent of the total budget in 2010.
There was a significant increase for education funding in 2010 from the previous 36.7 percent of the total budget of Rp270 billion in 2009, said Head of Bekasi City Education Department, Kodrato, in Bekasi.

Increased cost of education was mainly due to the new expenditure items, the stimulant fund for every high school student in Bekasi City Rp100 thousand per student per month for public high school and 200 thousand per month to request an international high school. For the construction of new classrooms, teaching and learning support equipment, laboratories, information technology, expanding the scope of compulsory education, and activities esktra and intrasekolah will continue to be implemented and enhanced.

Mention of compulsory education of nine years in the City of Bekasi, Kodrato states have done well. This proved, he continued, it was difficult to find children who did not received his primary and secondary education. Of the many street children roaming the streets, he said, children were also guided the Social Service and others are included in the center of learning and teaching (PKBM), packages A, B, C, and to contribute to the learning studio (LCS) until they I still get the education.

Chairman Bekasi City Education Foundation, Haris Budiman, states, large education budget should be reflected in the improvement of the quality of the students in the city of Bekasi, especially academic achievement. Substantial funds should be able to motivate school administrators and officials Disdik to really try to keep their students have adequate academic qualifications so they can compete in the higher education level.

Satan did not want to lie

The more liberal religious people in the more reluctant he was to visit places of worship. Hence many churches in Australia for sale. But the price was very cheap, because people believe that the church’s many demons, many gendruonya.

We formed a special branch of NU in Australia, the committee chose the former occupying the church. Not afraid of the devil. You see, before it housed the officials of the Qur’an memembaca there until hatam. Demons ran.

Then there is copied in this way. There are buying the church to be a place to do business. Unfortunately these people can not read the Qur’an. But he did not run out of ways. He bought a tape recorder with a tape of a complete reading of the Qur’an ‘, he’s hiding, and then she went for fear of the devil.

The next day he returned. Huh … demons lost with a tape recorder and tapes. “It was the devil do not want to be deceived,” said KH Hasyim Muzadi.