Grade 3 - Number Sense and Numeration
Standard 3.NSN.1 - Simplify both sides of the equation and select the operator that makes the equation true.
Included Skills: Mixed Equations, Number Properties, Comparison
Quantity Relationships • represent, compare, and order whole numbers to 1000, using a variety of tools (e.g., base ten materials or drawings of them, number lines with increments of 100 or other appropriate amounts); • read and print in words whole numbers to one hundred, using meaningful contexts (e.g., books, speed limit signs); • identify and represent the value of a digit in a number according to its position in the number (e.g., use base ten materials to show that the 3 in 324 represents 3 hundreds); • compose and decompose three-digit numbers into hundreds, tens, and ones in a variety of ways, using concrete materials (e.g., use base ten materials to decompose 327 into 3 hundreds, 2 tens, and 7 ones, or into 2 hundreds, 12 tens, and 7 ones); • round two-digit numbers to the nearest ten, in problems arising from real-life situations; • represent and explain, using concrete materials, the relationship among the numbers 1, 10, 100, and 1000, (e.g., use base ten materials to represent the relationship between a decade and a century, or a century and a millennium); • divide whole objects and sets of objects into equal parts, and identify the parts using fractional names (e.g., one half; three thirds; two fourths or two quarters), without using numbers in standard fractional notation; • represent and describe the relationships between coins and bills up to $10 (e.g., "There are eight quarters in a toonie and ten dimes in a loonie."); • estimate, count, and represent (using the $ symbol) the value of a collection of coins and bills with a maximum value of $10; • solve problems that arise from real-life situations and that relate to the magnitude of whole numbers up to 1000 (Sample problem: Do you know anyone who has lived for close to 1000 days? Explain your reasoning.).