This is a third grade Math review of what students should master in Common Core Domains Numbers and Operations in Base Ten and Operations and Algebraic Thinking.
NBT.1 / NBT.A.1 Use place value understanding to round whole numbers to the nearest 10 or 100.
NBT.2 / NBT.A.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
NBT.3 / NBT.A.3 Multiply one-digit whole numbers by multiples of 10 in the range 10–90 (e.g., 9 × 80, 5 × 60) using strategies based on place value and properties of operations
OA.1 / OA.A.1 Interpret products of whole numbers
OA.2 / OA.A.2 Interpret whole-number quotients of whole numbers
OA.3 / OA.A.3 Use multiplication and division within 100 to solve word problems .
OA.4 / OA.A.4 Determine the unknown whole number in a multiplication or division equation relating three whole numbers.
OA. 5 / OA.B.5 Apply properties of operations as strategies to multiply and divide.
OA.6 / OA.B.6 Understand division as an unknown-factor problem.
OA.7 / OA.C.7 Fluently multiply and divide within 100. By the end of Grade 3, know from memory all products of two one-digit numbers.
OA.8 / OA.D.8 Solve two-step word problems using the four operations.