3rd Grade Number Sense

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3rd Grade Number Sense: Standards and Practice Problem(s)	VoiceThread Mathcasts
3NS.1.0 Students understand the place value of whole numbers:
3NS.1.1 Count, read, and write whole numbers to 10,000.	View full-sized mathcast 3NS1-1 Ready
3NS.1.2 Compare and order whole numbers to 10,000.	Full-sized mathcast 3NS1-2 Ready
3NS.1.3 Identify the place value for each digit in numbers to 10,000.	3NS1-3 Ready
3NS.1.4 Round off numbers to 10,000 to the nearest ten, hundred, and thousand.	3NS1-4 Ready
3NS.1.5 Use expanded notation to represent numbers (e.g., 3,206 = 3,000 + 200 + 6).	3NS1-5 Ready
3NS.2.0 Students calculate and solve problems involving addition, subtraction, multiplication, and division
3NS.2.1 Find the sum or difference of two whole numbers between 0 and 10,000.	3NS2-1 Ready
3NS.2.2 Memorize to automaticity the multiplication table for numbers between 1 and 10.	3NS2-2 Ready
3NS.2.3 Use the inverse relationship of multiplication and division to compute and check results.	3NS2-3 Ready
3NS.2.4 Solve simple problems involving multiplication of multidigit numbers by one-digit numbers (3,671 x 3 = __).	3NS2-4 Ready
3NS.2.5 Solve division problems in which a multidigit number is evenly divided by a one-digit number (135 ÷ 5 = __).	3NS2-5 Ready
3NS.2.6 Understand the special properties of 0 and 1 in multiplication and division.	3NS2-6 Ready
3NS.2.7 Determine the unit cost when given the total cost and number of units.	3NS2-7 Ready
3NS.2.8 Solve problems that require two or more of the skills mentioned above.	3NS2-8 Ready
3NS.3.0 Students understand the relationship between whole numbers, simple fractions, and decimals
3NS.3.1 Compare fractions represented by drawings or concrete materials to show equivalency and to add and subtract simple fractions in context (e.g., 1/2 of a pizza is the same amount as 2/4 of another pizza that is the same size; show that 3/8 is larger than 1/4).	3NS3-1 Ready
3NS.3.2 Add and subtract simple fractions (e.g., determine that 1/8 + 3/8 is the same as 1/2).	3NS3-2 Ready
3NS.3.3 Solve problems involving addition, subtraction, multiplication, and division of money amounts in decimal notation and multiply and divide money amounts in decimal notation by using whole-number multipliers and divisors.	3NS3-3 Ready
3NS.3.4 Know and understand that fractions and decimals are two different representations of the same concept (e.g., 50 cents is 1/2 of a dollar, 75 cents is 3/4 of a dollar).	3NS3-4 Ready