Math 4.2
Number and operations. The student applies mathematical process standards to represent, compare, and order whole numbers and decimals and understand relationships related to place value. The student is expected to:
- (1) interpret the value of each place-value
position as 10 times the position to the right and as one-tenth of the value
of the place to its left;
- (A) represent the value of the digit in whole numbers through 1,000,000,000 and decimals to the hundredths using expanded notation and numerals;
- (B) compare and order whole numbers to 1,000,000,000 and represent comparisons using the symbols >, <, or =;
- (C) round whole numbers to a given place value through the hundred thousands place;
- (D) represent decimals, including tenths and hundredths, using concrete and visual models and money;
- (E) compare and order decimals using concrete and visual models to the hundredths;
- (F) relate decimals to fractions that name tenths and hundredths; and
- (G) determine the corresponding decimal to the tenths or hundredths place of a specified point on a number line.
- Plus Plan

Four Digit Numbers on a Number Line - Task Cards
Determine the intervals and identify the missing four-digit whole numbers on a number line with this set of 24 task cards.
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Vertical Number Line - Rounding Worksheets
Use a vertical number line to round whole numbers to the nearest ten, hundred, thousand, and ten thousand with a set of rounding worksheets.
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Lost in Decimal Woods - Decimal Number Line Interactive
Recognize and analyze decimals on a number line with an exciting self-checking interactive game.
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Decimals on a Number Line (Tenths and Hundredths) Slide Deck
Teach your students how to identify, order, and label decimals on a number line with an interactive teaching presentation.
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Decimals on Number Lines - Codebreaker Worksheets
Crack the number line code with worksheets practicing identification, addition, and subtraction of decimal numbers.
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Adding and Subtracting Decimals - Worksheets
Introduce adding and subtracting decimals using a number line with a decimal operations worksheet.
- Free Plan

Decimals to the Tenths - Number Line Worksheets
Practice identifying decimals on number lines with a number line worksheet.
- Plus Plan

Decimals on Number Lines - Task Cards
Sharpen your students’ abilities to identify decimals on a number line with a set of task cards.
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Decimals on a Number Line - Poster
Help your students visualize and identify decimals on a number line with a printable decimal number line anchor chart.
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What's That Decimal? - Number Line Mystery Reveal
Sharpen numeracy skills by identifying decimals on a number line with an interactive mystery picture reveal.
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Fractions and Decimals Number Line Puzzles
Practice identifying fractions and decimals on a number line with this set of 2- and 3-piece puzzles.
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Decimal Number Line - Match Up
Practice identifying decimals on a number line using a matching activity.
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Diving Into Decimals – Google Slides Interactive Activity
Use this interactive activity to take a deep dive into decimals while improving skills with decimal operations and place value concepts.
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Rounding Whole Numbers – Word Problem and Error Analysis Worksheet
Solve a variety of rounding word problems and analyze errors with this math worksheet.
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Comparing Decimals – Color by Number Worksheet
Compare decimals and create a beautiful stained-glass picture with this color-by-number worksheet.
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Comparing and Ordering Decimals Anchor Charts
Display different strategies for comparing and ordering decimals with this set of posters.
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Mental Math Multiplication Posters
Use this set of multiplication posters in your classroom when teaching different mental math strategies.
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Rounding Whole Numbers – Riddle Worksheets
Integrate riddles and math with this set of rounding worksheets.
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Rounding Numbers – Math Mazes
Round numbers to various places while finding your way through this set of 5 math mazes.
- Free Plan

Relating Decimals and Fractions Worksheet
Practice matching fractions with a denominator of 10 and 100 to decimals and vice versa.
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Rounding Numbers - Instructional Slide Deck
Teach the basics of rounding numbers with this engaging and animated PowerPoint.
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Rounding Match-Up Activity
Practice rounding decimals and whole numbers with this match-up activity.
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Decimal Place Value – Digital and Printable Worksheet
Get students analyzing decimal place value positions with this “This or That?” worksheet.
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Decimal Notation Puzzles
Practice expanded notation, word form and standard form using decimals with this set of 13 three-piece puzzles.
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Place Value Chart - Hundredths Place
A blank place value chart to use when exploring decimal numbers.
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Number Talks - Number Sense Task Cards
Build number sense skills with this set of 24 task cards.
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Number Talks - Decimal Representation Task Cards
Explore representations of decimals with your students using this set of 28 number talks task cards.
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Expanded Notation Puzzles - Whole Numbers
Practice whole number expanded notation with this 28-piece matching puzzle.
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Number Talks – Decimal Operations Task Cards
Explore decimal operations with your students using this set of 26 number talk task cards.
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Number Talks - Building Numbers Task Cards
Build number sense skills with this set of 24 task cards.
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Fractions and Decimals Matching Game
Practice matching equivalent fractions and decimals with this set of 15 cards that focus on tenths and hundredths place values.
- Plus Plan

Decimals Work Mat
Practice decimal concepts with this work mat for students.