Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Subtracting Whole Numbers and Decimals
If you are looking for a website that explains and defines subtraction with decimals you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.
CK-12 Foundation
Ck 12: Elem Math: Determining Which Decimal Falls Between Two Given Decimals
[Free Registration/Login may be required to access all resource tools.] For this learning module, students compare decimal numbers to see which one is between the two that they are given. Includes video demonstrating a sample problem...
CK-12 Foundation
Ck 12: Elem Math: Identifying Decimals on a Number Line to Hundredths
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to state the decimals to the hundredths place for given locations on a number line. Includes video demonstrating a...
CK-12 Foundation
Ck 12: Elem Math: Identifying Decimals on a Number Line to Tenths
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to state the decimals to the tenths place for given locations on a number line. Includes video demonstrating a sample...
CK-12 Foundation
Ck 12: Arithmetic: Combinations of Decimal Money Amounts
[Free Registration/Login may be required to access all resource tools.] Write amounts of money as decimals.
PBS
Pbs: Logical Leaps: Fractions, Mixed Numbers, and Decimals on the Number Line
In this interactive, students use logic to solve three riddles involving a frog jumping contest and then place the contestants' jumps at the correct points on the number line. Numbers are randomized so that the frogs' placements on the...
PBS
Pbs: Base 60: Babylonian Decimals
Explore a brief history of mathematics in Mesopotamia through the Babylonian Base 60 number system. This video focuses on how a base 60 system does not use fractions or repeating decimals, some of the advantages of a base 60 system, and...
Khan Academy
Khan Academy: Decimals in Written Form Review
Features a review of how to write decimals in written form, then provides practice.
Lesson Tutor
Lesson Tutor: Comparing Decimals
This site is an online lesson plan and practice problems for students learning how to compare two decimal values are provided here. A detailed explanation of both the methods and the practice questions are provided for easy understanding.
Homeschool Math
Homeschool Math: Multiply and Divide Decimals by 10, 100, and 1000
Lesson includes a video & examples showing the common shortcut for multiplying & dividing decimals by powers of ten. [7:59] Provides exercises and word problems for practice.
Knowledge Share
Super Kids: Rounding Numbers Worksheet Creator
Create your own math facts worksheets for rounding numbers. Problems can positive and negative numbers and decimal values. The user inputs the maximum and minimum values of the numbers to be used, makes decisions about negatives and...
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Add Whole Numbers, Add Decimals
This website explains and defines adding whole numbers and decimals. Content explores addition with regrouping and how to align numbers in a written calculation. There are even practice problems at the end of the lesson.
E-learning for Kids
E Learning for Kids: Math: Hamburger Restaurant: Operations With Money
On this interactive site students learn to round numbers to the nearest ten thousand, determine the place value of any digit, and use ordinal numbers.
Common Core Sheets
Common Core Sheets: Number and Operations in Base Ten 5.nbt.2 Worksheets
Print or create worksheets or flashcards to assess students' understanding of the place value system.
Illustrative Mathematics
Illustrative Mathematics: 5.nbt Are These Equivalent to 9.52?
Presents six sets of numbers in various formats and students are asked to determine which ones are equivalent to the decimal number 9.52 and to explain their reasoning. Aligns with 5.NBT.A and 5.NBT.A.3.
Common Core Sheets
Common Core Sheets: Number and Operations in Base Ten 5.nbt.4 Worksheets
Teachers can assess students' knowledge of place value with these printable worksheets. You can even create your own activity or flashcards.
Common Core Sheets
Common Core Sheets: Number and Operations in Base Ten 5.nbt.7 Worksheets
Teachers can assess students' knowledge of adding, subtracting, multiplying, and dividing decimals to hundredths with these printable worksheets. You can even create your own worksheet or flashcards.
Illustrative Mathematics
Illustrative Mathematics: Rounding to Tenths and Hundredths
The purpose of this task is for students to use the position of a number on the number line to round the number without knowing its exact value. Though this task deals most directly with rounding, it also requires students to understand...
Primary Resources
Primary Resources: Follow Me "Loop" Math Games
An extensive collection of premade cards for "loop" games in math. These "I have, Who has?" cards are available for counting on and back, capacity, place value, addition, subtraction, multiplication, division, fractions, decimals, money...
Common Core Sheets
Common Core Sheets: Number and Operations in Base Ten 5.nbt.3b Worksheets
Print or create worksheets or flashcards to assess students' understanding of place value, comparing numbers, and ordering numbers with decimals.
Illustrative Mathematics
Illustrative Mathematics: 4.nbt What's My Number?
The purpose of this task is for students to reason about base-ten numbers on the number line in a way that will require them to use what they know about place value. Students first represent addition and subtraction on the number line in...
Common Core Sheets
Common Core Sheets: Number and Operations in Base Ten 5.nbt.1 Worksheets
Teachers can assess students' knowledge of place value with these printable worksheets. You can even create your own worksheet or flashcards.
Common Core Sheets
Common Core Sheets: Number and Operations in Base Ten 5.nbt.3a Worksheets
Print or create worksheets or flashcards to assess students' understanding of place value, numeric form, and expanded notation.
The Math League
The Math League: Percent & Probability
This tutorial gives definitions and examples of percents and probability and covers percent as a fraction and percent as a decimal.