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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/unesp/360834
Title: 
Decimal multiplication
Author(s): 
Lichtblau, Sarah
Language: 
eng
Description: 
  • There are two primary ways to think about how to multiply decimals. Both of these ways are demonstrated step by step above. The first method is called estimation. Begin by writing out your original problem. Once you have done this, remove the decimal from the original numbers and multiply them. Then, round any decimal numbers and multiply again. The final step is to place a decimal back into the answer from the second step in the position which makes the result closest to the estimate from the third step. The second method is called place values. Rewrite each decimal number as a whole number divided by a power of ten. Then multiply the tops and bottoms to get a fraction. The denominator is a power of ten. Finally, move the decimal place over according to which power of ten is in the denominator
  • Componente Curricular::Ensino Fundamental::Séries Finais::Matemática
Issue Date: 
  • 12-Sep-2008
  • 15-Sep-2008
  • 15-Sep-2008
  • 15-Sep-2008
Keywords: 
  • Educação Básica::Ensino Fundamental Final::Matemática::Números e operações
  • Decimal
  • Multiplication
Credits: 
This demonstration needs the "MathematicaPlayer.exe" to run. Found in http://objetoseducacionais2.mec.gov.br/handle/mec/4737
Source: 
http://objetoseducacionais2.mec.gov.br/handle/mec/5291
URI: 
http://acervodigital.unesp.br/handle/unesp/360834
Rights: 
Demonstration freeware using Mathematica Player
Type: 
outro
Appears in Collections:MEC - Objetos Educacionais (BIOE) - OE

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