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.
Classify two-dimensional figures in a hierarchy based on properties.
Convert among different-sized standard measurement units within a given measurement system when the conversion factor is given. Use these conversions in solving multi-step, real world problems.
Interpret division of a whole number by a unit fraction, and compute such quotients.
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. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
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 for this grade to solve problems involving information presented in line plots.
Using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between operations:
ā¢ add and subtract decimals to hundredths;
ā¢ multiply and divide decimals to hundredths.
Relate the strategy to a written method and explain the reasoning used.
Interpret a fraction as 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.
Use whole-number exponents to denote powers of 10. Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10.
Interpret the product a/b Ć q as a parts of a partition of q into b equal parts; equivalently, as the result of a sequence of operations a Ć q/b.
Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category.
Compare the size of a product to the size of one factor on the basis of the size of the other factor, without performing the indicated multiplication.
Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers.
Read and write decimals to thousandths using base-ten numerals, number names, and expanded form.
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