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Year5 Math
任务 20：Using a Calculator to Add and Subtract Decimals
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任务 List
任务 1：Negative Numbers (1)
任务 2：Negative Number (2)
任务 3：Exercise 0ne
任务 4：The area of a parallelogram, triangle, and trapezoid
任务 5：Exercise 0ne
任务 6：Exercise Two
任务 7：Understanding Hectares
任务 8：Understanding Square Kilometers
任务 9：Area of simple composite shapes
任务 10：Exercise Three
任务 11：Area of irregular shapes
任务 12：Understanding Decimals：Meaning, Properties, Reading, and Writing
任务 13：Comparison of decimals
任务 14：Decimals with units of “million” or “billion” are used to express large numbers
任务 15：Approximation of decimals
任务 16：Exercise 0ne
任务 17：Exercise Two
任务 18：Addition and subtraction of decimals
任务 19：Exercise 0ne
任务 20：Using a Calculator to Add and Subtract Decimals
任务 21：Exercise Two
任务 22：Multiplying Decimals by Whole Numbers and by Decimals
任务 23：A Decimal Divided by a Whole Number
任务 24：Exercise 0ne
任务 25：Approximate values of products and quotients
任务 26：Exercise Two
任务 27：Mixed operations with decimals
任务 28：Exercise Three
任务 29：Exercise Four
任务 30：Composite Statistical Tables
任务 31：Exercise 0ne
任务 32：Compound bar charts
任务 33：Exercise Two
任务 34：Use the enumeration strategies to solve problems (1)
任务 35：Use the enumeration strategies to solve problems (2)
任务 36：Exercise 0ne
任务 37：Using expressions to represent quantitative relationships and calculation formulas
任务 38：Exercise 0ne
任务 39：Simplifying Expressions with Letters
任务 40：Equations
任务 41：Properties of Equations and Solving Equations
任务 42：Exercise 0ne
任务 43：Use equations to solve word problems
任务 44：Exercise Two
任务 45：Exercise Three
任务 46：Review
任务 47：Single Line Chart
任务 48：Compound line chart
任务 49：Exercise 0ne
任务 50：Exercise Two
任务 51：Understanding Factors and Multiples
任务 52：The characteristics of multiples of 2, 3, and 5
任务 53：Exercise 0ne
任务 54：Common factors and highest common Factor
任务 55：Exercise Two
任务 56：Common multiples and lowest common multiple (LCM)
任务 57：Exercise Three
任务 58：Review
任务 59：Understanding Prime Numbers and Composite Numbers
任务 60：Prime factors and prime factorization
任务 61：Exercise 0ne
任务 62：Exercise Two
任务 63：The Meaning and Basic Properties of Fractions
任务 64：Exercise 0ne
任务 65：Proper fractions and Improper fractions
任务 66：Simplifying and finding a common denominator
任务 67：Exercise Two
任务 68：Comparison of fractions
任务 69：Exercise Three
任务 70：Review
任务 71：Addition and subtraction of fractions with different denominators
任务 72：Exercise 0ne
任务 73：Mixed operations of addition and subtraction of fractions
任务 74：Exercise Two
任务 75：Exercise Three
任务 76：Understanding Circles and Sectors
任务 77：Exercise 0ne
任务 78：The circumference and area of a circle
任务 79：Area of simple composite shapes
任务 80：Exercise Two
任务 81：Review
