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Lesson 53

Lesson 53. Decimal Chart Simplifying Fractions. Notes. Mental Math. Links. Activity. Proficiency. Homework. 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. + or -. x.

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Lesson 53

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  1. Lesson 53 Decimal Chart Simplifying Fractions

  2. Notes Mental Math Links Activity Proficiency Homework Fact Test

  3. 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

  4. + or - x ÷ by a whole ÷ by a decimal Operation • Decimal Chart Memory Cue Line up X, then Count over Move Decimal Straight Up Over, over, up You may need to: Place a decimal point to the right of a whole number Fill empty places with zero’s

  5. 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.

  6. Example 4/6 + 5/6 = 4/6 + 5/6 9/6 = Reduce First Convert 1st Reduce: 9/6 = 3/2 9/6 = 1 3/6 Convert: 3/2 = 1 ½ 1 3/6 = 1 ½

  7. Adding / Subtracting Decimals http://www.math.com/school/subject1/practice/S1U1L4/S1U1L4Pract.html Multiplying Decimals http://www.math.com/school/subject1/practice/S1U1L5/S1U1L5Pract.html Dividing Decimals http://www.math.com/school/subject1/practice/S1U1L5/S1U1L5Pract.html Reducing Decimals http://www.math.com/school/subject1/practice/S1U4L2/S1U4L2Pract.html

  8. Proficiency

  9. Proficiency

  10. Activity Here is part of a multiplication table. What number is missing? 39 42 48 42 ? 56 48 56 64

  11. Lesson 53 Practice A-E Complete #’s 1-10

  12. Fact Test D

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