 # Math

Below you will find the Baltimore County Public Schools standards for 4th grade mathematics. Our first math unit will focus on place value.

Students in Grade 4 should know and be able to:

 Use addition, subtraction, multiplication, and division to solve a variety of problems.

 Understand that multiplication can represent a multiplicative comparison.

 Use manipulatives, pictures, and equations to solve multiplication and division problems.

 Solve multi-step, real-world problems involving addition, subtraction, multiplication, and division.

 Interpret remainders in division story problems.

 Gain familiarity with factors and multiples.

 Determine if numbers are prime or composite.

 Generate a number or shape pattern that follows a given rule and identify features of the pattern.

 Read, write, and represent multi-digit whole number up to one million.

 Understand how the base ten number system works.

 Use place value understanding and properties of operations to perform multi-digit computation.

 Fluently add and subtract multi-digit whole numbers using the standard algorithm. Fluency, or knowing from memory, develops with the use of reasoning strategies rather than through rote memorization.*

 Multiply a whole number with up to four-digits by a one-digit number.

 Multiply a two-digit number by a two-digit number.

 Divide a four-digit number by a one-digit number.

 Use area models to show how to multiply and divide multi-digit numbers.

 Extend understanding of ordering and comparing fractions.

 Generate equivalent fractions.

 Add and subtract fractions with like denominators using manipulatives, pictures, diagrams, numbers, and words.

 Decompose a fraction into a sum of multiple fractions.

 Add and subtract mixed numbers.

 Solve a variety of word problems involving addition and subtraction of fractions.

 Multiply a fraction by a whole number.

 Understand how fractions and decimals are related.

 Read, write, and represent decimal fractions up to hundredths.

 Compare decimals using >, <, or =.

 Solve problems involving measurement conversions and addition, subtraction, multiplication, and division. 