Lesson 53Lesson 53Lesson 53Lesson 53Decimal ChartDecimal Chart

Simplifying FractionsSimplifying Fractions

Notes Mental Math

Links

HomeworkProficiency

Activity

Fact Test

Mental Math• Count by 9’s from 9 to 108• 8 x 225 256 + 34• 250 - 99 $25 - $12.50• Double 2 ½ 800 ÷ 20• 10 x 10, - 20, + 1, ÷ 9, x 5, - 1, ÷

4

• Decimal Chart

You may need to:Place a decimal point to the right of a whole number

Fill empty places with zero’s

+ or - x ÷ by a whole÷ by a decimal

MemoryCue

Line upX, then

Count over

Move DecimalStraight

Up

Over, over,up

Operation

Simplifying Fractions• We simplify fractions in two ways.

We reduce fractions to lowest terms, and we convert improper fractions to mixed numbers.

• Sometimes a fraction can be reduced and converted to a mixed number.

• Example

4/6 + 5/6 =

4/6+ 5/6 9/6 =

Reduce First Convert 1stReduce: 9/6 = 3/2 9/6 = 1 3/6Convert: 3/2 = 1 ½ 1 3/6 = 1 ½

Adding / Subtracting Decimalshttp://www.math.com/school/subject1/practice/S1U1L4/S1U1L4Pract.html

Multiplying Decimalshttp://www.math.com/school/subject1/practice/S1U1L5/S1U1L5Pract.html

Dividing Decimalshttp://www.math.com/school/subject1/practice/S1U1L5/S1U1L5Pract.html

Reducing Decimalshttp://www.math.com/school/subject1/practice/S1U4L2/S1U4L2Pract.html

Proficiency

Proficiency

ActivityHere is part of a multiplication table.

What number is missing?

39

42

48

42 48

? 56

56 64

Lesson 53

Practice A-EComplete #’s 1-10

Fact Test D