Use numbers and symbols to model the concepts of expressions and equations.

### Lessons for this standard

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### Related standards

- This standard is part of: M04.B-O.1

#### More specific sub-standards

Interpret a multiplication equation as a comparison. Represent verbal statements of multiplicative comparisons as multiplication equations.

Multiply or divide to solve word problems involving multiplicative comparison, distinguishing multiplicative comparison from additive comparison.

Solve multi-step word problems posed with whole numbers using the four operations. Answers will be either whole numbers or have remainders that must be interpreted yielding a final answer that is a whole number. Represent these problems using equations with a symbol or letter standing for the unknown quantity.

Identify the missing symbol (+, –, ×, ÷, =, <, and >) that makes a number sentence true (single-digit divisor only).

#### Similar standards in other grades

Represent and solve problems involving multiplication and division.

Solve mathematical and real-world problems using multiplication and division, including determining the missing number in a multiplication and/or division equation.

Use multiplication (up to and including 10 × 10) and/or division (limit dividends through 50 and limit divisors and quotients through 10) to solve word problems in situations involving equal groups, arrays, and/or measurement quantities.

Determine the unknown whole number in a multiplication (up to and including 10 × 10) or division (limit dividends through 50 and limit divisors and quotients through 10) equation relating three whole numbers.

Solve problems involving the four operations, and identify and explain patterns in arithmetic.