



Primary Mathematics Common Core Edition is based on the highly successful Primary Mathematics series from Singapore. The use of Primary Mathematics has contributed to Singapore's first place ranking in the Trends in International Mathematics and Science Study (TIMSS) in 1995, 1999, and 2003. With the support of Marshall Cavendish Education mathematics materials, developed using the Singapore approach, students in Singapore continue to rank top in various international studies, including the most recent 2011 TIMSS results.
This Primary Mathematics series has been updated to align with the Common Core State Standards for mathematics.
Designed to equip students with a strong foundation in mathematics and critical thinking skills, the Primary Mathematics Common Core Edition program offers an integrated solution to different learning needs in the classroom for Kindergarten and Grades 1 to 5.
The above is extracted from Primary Mathematics Common Core Edition with permission from the publishers.
Extra Practice Grades 1 to 5 consolidate and reinforce the mathematical skills taught in the Primary Mathematics series. The short and topicspecific exercises enable instructors to assign work only in topics for which the students need more practice. The simple language used allows students to review mathematics with minimal guidance.
Extra Practice for Primary Mathematics Common Core Edition  Level 5
Contents
Unit 1  Whole Numbers
Large Numbers
Approximation and Estimation
Factors and Multiples
Prime Factorization
Multiplying by Tens, Hundreds, or Thousands
Dividing by Tens, Hundreds, or Thousands
Unit 2  More Calculations with Whole Numbers
Order of Operations
Methods for Mental Calculation
Looking Back: Word Problems
Multiplication by a 2Digit Whole Number
Division by a 2Digit Whole Number
Unit 3  Fractions
Looking Back
Fractions and Division
Addition and Subtraction of Unlike Fractions
Addition and Subtraction of Mixed Numbers
Product of a Fraction and a Whole Number
Word Problems
Unit 4  Multiply and Divide Fractions
Product of Fractions
Word Problems
Dividing a Fraction by a Whole Number
Dividing by a Fraction
More Word Problems
Unit 5  Perimeter and Area
Square Units
Area of Composite Figures  Rectangles and Squares
Area of a Triangle
Area of a Parallelogram
Unit 6  Ratio
Finding Ratio
Equivalent Ratios
Combining Three Quantities
Unit 7  Decimals
Tenths, Hundredths, and Thousandths
Approximation
Add and Subtract Decimals
Multiply and Divide Decimals by a 1Digit Whole Number
Multiplication by Tens, Hundreds, or Thousands
Division by Tens, Hundreds, or Thousands
Unit 8  More Calculations
Multiplication by a 2Digit Whole Number
Division by a 2Digit Whole Number
Multiplication by a Decimal
Division by a Decimal
Conversion of Measures
Unit 9  Volume
Volume of Rectangular Prisms
Finding the Volume of a Solid
Unit 10  Average, Plots, and Graphs
Average
Line Plots
Coordinate Graphs
Line Graphs
Unit 11  Angles, Triangles, and Quadrilaterals
Looking Back
Finding Unknown Angles
Finding Unknown Angles in Triangles
Isosceles and Equilateral Triangles
Finding Unknown Angles in Quadrilaterals
Parallelograms, Rhombuses, and Trapezoids
Unit 12  Percentage
Percent
Writing Fractions as Percentages
Percentage of a Quantity
Unit 13  Rate
Rate
Answers
Samples
Extra Practice 5:
 Unit 9: Volume: Friendly Notes (pp. 163164)
 Unit 9: Volume: Exercise 1: Volume of Rectangular Prisms (pp. 168, 169, 172)
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Our recommendation:
Extra Practice for Primary Mathematics Common Core Edition 1A5B books are recommended as a source of reteaching and extra practice of the skills taught in the Primary Mathematics textbooks. They can be used for review for tests, to review concepts taught earlier, as a means to keep parents aware of what is being taught in school with example problem sets, or as a summer math book to keep concepts fresh. They are not recommended as a primary teaching resource. Though each unit does contain “friendly notes” reviewing the concepts, these are not sufficient alone for learning the concept for the first time.








