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Основно съдържание

STANDARDS

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US-OK

Math

Oklahoma Math

Third Grade (3): Numbers & Operations (N)

3.N.1

Compare and represent whole numbers up to 100,000 with an emphasis on place value and equality.

3.N.1.1

Read, write, discuss, and represent whole numbers up to 100,000. Representations should include but are not limited to numerals, words, pictures, number lines, and manipulatives (e.g., 350 = 3 hundreds, 5 tens = 35 tens = 3 hundreds, 4 tens, 10 ones).

3.N.1.2

Use place value to describe whole numbers between 1,000 and 100,000 in terms of ten thousands, thousands, hundreds, tens and ones, including written, standard, and expanded forms.

3.N.1.3

Applying knowledge of place values, use mental strategies (no written computations) to find 100 more or 100 less than a given number, 1,000 more or 1,000 less than a given number, and 10,000 more or 10,000 less than a given number, up to a five-digit number.
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3.N.1.4

Use place value to compare and order whole numbers, up to 100,000, using comparative language, numbers, and symbols.
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3.N.1.5

Use place value understanding to round numbers to the nearest thousand, ten-thousand and hundred thousand.

3.N.2

Solve real-world and mathematical problems using addition, subtraction, multiplication, and division.

3.N.2.1

Represent multiplication facts by modeling a variety of approaches (e.g., manipulatives, repeated addition, equal-sized groups, arrays, area models, equal jumps on a number line, skip counting).

3.N.2.2

Demonstrate fluency with multiplication facts using factors up to 10.

3.N.2.3

Use strategies and algorithms based on knowledge of place value and equality to fluently add and subtract up to five-digit numbers (answer not to exceed 100,000).

3.N.2.4

Recognize when to round numbers and apply understanding to estimate sums and differences to the nearest ten thousand, thousand, hundred, and ten.

3.N.2.5

Use addition and subtraction to solve problems involving whole numbers. Use various strategies, including the relationship between addition and subtraction and the context of the problem to assess the reasonableness of results.

3.N.2.6

Represent division facts and divisibility by modeling a variety of approaches (e.g., repeated subtraction, equal sharing, forming equal groups) to show the relationship between multiplication and division.

3.N.2.7

Apply the relationship between multiplication and division to represent and solve problems.

3.N.2.8

Use various strategies (e.g., base ten blocks, area models, arrays, repeated addition, algorithms) based on knowledge of place value, equality, and properties of addition and multiplication to multiply a two-digit factor by a one-digit factor.

3.N.3

Use and justify fractional representations in real-world and mathematical problems.

3.N.3.1

Read and write fractions with words and symbols using appropriate terminology (i.e., numerator and denominator).

3.N.3.2

Model fractions using length, set, and area for halves, thirds, fourths, sixths, and eighths.

3.N.3.3

Apply understanding of unit fractions and use this understanding to compose and decompose fractions related to the same whole.
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3.N.3.4

Use models and number lines to order and compare fractions that are related to the same whole.

3.N.4

Determine the value of a set of coins and determine the value of a set of bills in monetary transactions.

3.N.4.1

Use addition and subtraction to determine the value of a collection of coins up to one dollar using the cent symbol and in monetary transactions.
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3.N.4.2

Add and subtract a collection of bills up to twenty dollars using whole dollars in monetary transactions.
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