Florida B.E.S.T. MA.4.NSO.2

MA.4.NSO.2 is a B.E.S.T. standard. These are the benchmarks under it.

• MA.4.NSO.2.1

  Recall multiplication facts with factors up to 12 and related division facts with automaticity.

• MA.4.NSO.2.2

  Multiply two whole numbers, up to three digits by up to two digits, with procedural reliability.

• MA.4.NSO.2.3

  Multiply two whole numbers, each up to two digits, including using a standard algorithm with procedural fluency.

• MA.4.NSO.2.4

  Divide a whole number up to four digits by a one-digit whole number with procedural reliability. Represent remainders as fractional parts of the divisor.

• MA.4.NSO.2.5

  Explore the multiplication and division of multi-digit whole numbers using estimation, rounding and place value.

• MA.4.NSO.2.6

  Identify the number that is one-tenth more, one-tenth less, one-hundredth more and one-hundredth less than a given number.

• MA.4.NSO.2.7

  Explore the addition and subtraction of multi-digit numbers with decimals to the hundredths.

01

What Students Need to Do

Students use place value to add, subtract, multiply, and divide multi-digit numbers. They represent their thinking with equations, models, or written methods and check whether answers are reasonable.

02

What Mastery Looks Like

Students accurately solve multi-digit addition, subtraction, multiplication, and division problems. They align numbers by place value, show regrouping, interpret remainders, and use estimates to check answers.

03

Common Misconceptions

Students may combine digits without attending to place value or align decimal numbers by their last digit. They may skip regrouping, omit partial products, or treat a remainder as part of the quotient.

04

How to Assess It

Exit ticket: Solve 3,406 + 2,785, 8.2 − 3.47, 216 × 34, and 1,428 ÷ 6. Use an estimate to check one answer.

1. 01

   Use base-ten blocks and a place-value mat to model 3.6 + 1.75, trade pieces, then record the matching equation.

2. 02

   Show two worked solutions for 2,304 ÷ 6 and ask students to write which method is correct and explain the error.

3. 03

   Play Target Product: students draw five digit cards, build a three-digit by two-digit multiplication problem, and score for closeness to 10,000.

4. 04

   Give students a store receipt and a $50 budget; they find the total, change, and whether one more item can be bought.

• MA.1.NSO.2

  Develop an understanding of addition and subtraction operations with one- and two-digit numbers.

• MA.3.NSO.2

  Add and subtract multi-digit whole numbers. Build an understanding of multiplication and division operations.

• MA.6.NSO.2.3

  Solve multi-step real-world problems involving any of the four operations with positive multi-digit decimals or positive fractions, including mixed numbers.