Grade 5 Iowa Math Standards

Use a pair of perpendicular number lines, called axes, to define a coordinate system, with the intersection of the lines (the origin) arranged to coincide with the 0 on each line and a given point in the plane located by using an ordered pair of numbers, called its coordinates. Plot points in the first quadrant of a coordinate plane. Understand that the first number indicates how far to travel from the origin in the direction of the x-axis, and the second number indicates how far to travel in the direction of the y-axis, with the convention that the names of the two axes and the coordinates correspond (x,y)

Represent real-world and mathematical problems by graphing points in the first quadrant of the coordinate plane and interpret coordinate values of points in the context of the situation

Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category

Classify two-dimensional figures in a hierarchy based on properties

Convert among different-sized standard measurement units within a given measurement system and use these conversions in solving multi-step, real-world problems

Make a line plot to display a data set of measurements in fractions of a unit (1/2,1/4,1/8). Use operations on fractions to solve problems involving information presented in line plots

Recognize volume as an attribute of solid figures and understand concepts of volume measurement

Measure volumes by counting unit cubes, using cubic cm, cubic in, cubic ft, and improvised units

Relate volume to the operations of multiplication and addition and solve real world and mathematical problems involving volume

Recognize that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and1/10of what it represents in the place to its left

Explain and use patterns in the number of zeros of the product when multiplying a number by powers of 10 and use patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10. Use whole-number exponents to denote powers of 10

Read, write, and compare decimals to thousandths

Use place value understanding to round decimals to any place

Fluently multiply whole multi-digit numbers including using an algorithm. Algorithms may include the standard algorithm, partial products, area model

Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division, including the standard algorithm. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models

Add, subtract, multiply, and divide decimals to hundredths. Be able to illustrate and explain using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction

Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators

Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators

Interpret that a fraction is the division of the numerator by the denominator (a/b=a÷b). Solve word problems involving division of whole numbers leading to answers in the form of fractions or mixed numbers, by using visual fraction models or equations to represent the problem

Apply and extend earlier understandings of multiplication to multiply a fraction or whole number by a fraction. (This standard does not include mixed numbers.)

Interpret multiplication as scaling (resizing) by:

Solve real-world problems involving multiplication of fractions and mixed numbers

Apply and extend earlier understandings of division to divide unit fractions by whole numbers and whole numbers by unit fractions

Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols, including expressions in which whole numbers and fractions appear

Write simple expressions that record calculations with numbers and interpret numerical expressions without evaluating them

Generate two numerical patterns using two given rules. Identify apparent relationships between corresponding terms. Form ordered pairs consisting of corresponding terms from the two patterns and graph the ordered pairs on a coordinate plane; explain informally why this is so