Solve two-step word problems using the four operations. Know how to perform operations in the conventional order when there are no parentheses to specify a particular order (Order of Operations). (Limit to problems posed with whole numbers and having whole number answers.)
3.OA.8.b
Represent two-step problems using equations with a letter standing for the unknown quantity. Create accurate equations to match word problems.
3.OA.8.c
Assess the reasonableness of answers using mental computation and estimation strategies, including rounding.
3.NBT.2
Fluently add and subtract within 1,000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
