Math Essentials



3NBT1:  round numbers using place value

3NBT2:  fluently add & subtract within 1000

3OA8:  solve two-step word problems using two operations (+/-)

3OA1:  interpret products of whole numbers

3MD5:  understand concepts of area

3MD6:  measure area by counting unit squares

3MD7: relate area to the operations of multiplication & addition

3NBT3: multiply one-digit whole numbers by multiples of ten

3OA9:  identify arithmetic patterns and explain using properties of operations

3OA8: solve two-step word problems using three operations (+/-/x)

3MD7c: use tiling to show the distributive property in finding area

3MD7d:  recognize area as additive in real world problems

3MD8: solve real world perimeter problems


3OA2:  interpret whole-number quotients of whole numbers

3NF1: understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts

3NF3: explain equivalence of fractions & compare fractions

3NF2a: represent a fraction on a number line by defining intervals

3NF2b: represent a fraction on a number line by marking lengths

3OA4: determine unknowns in a multiplication or division equation

3OA5: apply properties of operations to multiply and divide

3OA6: recognize divison as an unknown-factor problem

3G2: partition shapes into equal areas, express as unit fractions

3OA7: fluently multiply & divid to 100

3OA3: use multiplication & division within 100 to solve word problems

3G1: understand shapes in different categories may share attributes & shared attributes can define a larger category

3OA8:  solve two-step word problems using the four operations

3MD1:  tell and write time in minutes, + and - time in minutes

3MD2: metric measure of g, kg, l, in one step problems

3MD4: measure lengths using rulers marked 1/2 & 1/4, show on a line plot