-change mixed number into an improper fraction by going ‘around the world’ (denominator times whole number plus numerator, answer becomes new numerator over original denominator) -cross simplify if you can -multiply numerators, and then multiply denominators -always reduce answers -Dividing -change mixed number into an improper fraction by going ‘around the world’ (denominator times whole number plus numerator, answer becomes new numerator over original denominator) -keep, change, flip (keep the first fraction as is, change the operation to multiplication, flip the second fraction over) -cross simplify if you can -multiply numerators, and then multiply denominators -always reduce answers Unit Conversions Customary: time, weight, length -Use conversion and set up a proportion Ex. How many days in 5 weeks? Days Weeks 7 = 1 x 5 multiply and divide: 7(5) = 35 ÷ 1 = 35 35 days in 5 Metric: distance, volume, weight Large units ------------Small units Kilo, Deka, Unit, Deca, Centi, Milli -when converting from large to small, multiply by 10 for each spot moved (or move decimal one space to the right for each spot moved) -when converting from small to large, divide by 10 for each spot moved (or move decimal one space to the left for each spot moved) Ex. 20 Km = ? Cm
-change mixed number into an improper fraction by going ‘around the world’ (denominator times whole number plus numerator, answer becomes new numerator over original denominator) -cross simplify if you can -multiply numerators, and then multiply denominators -always reduce answers -Dividing -change mixed number into an improper fraction by going ‘around the world’ (denominator times whole number plus numerator, answer becomes new numerator over original denominator) -keep, change, flip (keep the first fraction as is, change the operation to multiplication, flip the second fraction over) -cross simplify if you can -multiply numerators, and then multiply denominators -always reduce answers Unit Conversions Customary: time, weight, length -Use conversion and set up a proportion Ex. How many days in 5 weeks? Days Weeks 7 = 1 x 5 multiply and divide: 7(5) = 35 ÷ 1 = 35 35 days in 5 Metric: distance, volume, weight Large units ------------Small units Kilo, Deka, Unit, Deca, Centi, Milli -when converting from large to small, multiply by 10 for each spot moved (or move decimal one space to the right for each spot moved) -when converting from small to large, divide by 10 for each spot moved (or move decimal one space to the left for each spot moved) Ex. 20 Km = ? Cm
Year%20in%20Review%207th%20ACA.docx