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# Place value, even and odd numbers, Roman numerals, large numbers, and rounding: games and resources online

**Place value**

**Tens and ones exercise**

Enter the 2-digit number represented by ten-bags and one-balls.

www.dositey.com/2008/addsub/tenoneex.htm

**E-manipulatives, including base 10 blocks**

Use the stamp to place 100-flats, 10-rods, and 1-squares into a working space. Use the arrows in the columns to "move" (regroup) them to the other columns.

http://www.eduplace.com/kids/mw/manip/mn_3.html

**Virtual Manipulative: Base 10 blocks**

Place value up to thousands. The program gives you a number to make and you click on the 1000-cubes, 100-flats, 10-rods, and 1-cubes to make it. You can change the number base to work in base 2, base 3, etc.

nlvm.usu.edu/en/nav/frames_asid_152_g_1_t_1.html

**Maths Teacher's Toolkit**

Includes place value calculator, place value cards, interactive number line, hundred square, and other interactive Flash resources.

www.crick.northants.sch.uk/Flash%20Studio/cfsmaths/Toolkit/Toolkit.htm

**Place the Penguins**

Practice breaking up the numbers into tens and ones, or into
hundreds, tens and ones in this game.

www.bbc.co.uk/schools/starship/maths/placethepenguin.shtml

**Place
value puzzler**

Place value or rounding game, click on asked place value in a
number or type in asked rounding.

www.funbrain.com/tens/index.html

**Can you say really big numbers?**

Enter a really big number, try say it out loud, and see it written.

www.mathcats.com/explore/reallybignumbers.htm

**Place value
payoff**

Match numbers written in standard form with numbers written in expanded form
in this game.

www.quia.com/mc/279741.html

**Line Dry Game**

Fill in a missing number on the clothes line based on different skip counting patterns.

www.fuelthebrain.com/Game/play.php?ID=15

**Hand made manipulatives**

Print these pages on cardstock to get your own base 10 blocks, rods, geometrical shapes, or algebra tiles (XY-blocks).

mason.gmu.edu/~mmankus/Handson/manipulatives.htm

**Math Mammoth Early Geometry**

A self-teaching worktext for 1st - 3rd grade that covers basic shapes, right angle, symmetry, area, perimeter, and solids.

**Download ($5.95)**. Also available as a printed copy.

**Even & Odd Numbers**

**Fruit Shoot**

Shoot a fruit with an even or odd number, whichever one your aim tells you. Three levels: 1-10, 1-20, and 1-100.

www.sheppardsoftware.com/mathgames/earlymath/Fruit_shoot_odd_even.htm

**
Odd or Even?**

Drag and drop the number cards to their correct place in the diagram (even or odd). three difficulty levels (numbers 1-10, 1-30, or 1-100).

www.crickweb.co.uk/ks2numeracy-properties-and-ordering.html#

**Story of Odd and Even**

A simple story about two ladybugs named Odd and Even. It teaches even and odd within 1-10.

www.primarygames.com/storybooks/even_odd/1.htm

**Roman Numerals**

**Roman Numerals Tutorial**

Good explanations of how numbers are formed using Roman Numerals, such as when to "add" or "subtract" the symbols. The page allows interactivity where the student can self-check his/her understanding.

www.beaconlearningcenter.com/weblessons/romannumerals/default.htm

**Roman Numerals**

This article includes charts, an interactive converter, explanation of the system, its history, modern use, and more.

knowtheromans.co.uk/Categories/SubCatagories/RomanNumerals/default.htm

**Roman Numerals Dot-to-Dots**

Free dot-to-dot worksheets with animal themes that use Roman Numerals.

www.animaldottodots.com/romannumerals.php

**Roman Numerals Worksheets**

Generate worksheets for converting Roman numerals to normal (Arabic) ones, or normal numbers to Roman numerals, or do easy addition and subtraction problems with Roman numerals. Both PDF and html formats available.

www.homeschoolmath.net/worksheets/roman_numerals.php

**Roman Matching Game**

Drag the Roman numerals to the corresponding Arabic numerals. If you win the next game will be faster. See if you can beat the clock!

learn.fi.edu/time/keepers/Silverman/html/RomanMatch.html

**Roman Numerals - Wikipedia**

An article explaining the usage, origin, and a chart of Roman numerals.

en.wikipedia.org/wiki/Roman_numerals

**Quia: Easy Roman Numerals**

Translate Roman numerals into Arabic (covers I, V, and X only). Matching game, concentration, or word search.

www.quia.com/jg/66123.html

**Roman Numerals - A Maths Webquest**

A set of web pages where you can learn all about roman numerals: how they originated, how to read & write the numerals, and places we still use the Roman number system today.

www.greatmathsgames.com/roman_numerals/roman_numerals.htm

**Roman Sequence Game**

See how fast you can put these Roman numerals in the correct sequence.

learn.fi.edu/time/keepers/Silverman/html/RomanSequence.html

**Math Mammoth Add & Subtract 2-B**

A self-teaching worktext for 2nd grade that covers mental addition and subtraction with two-digit numbers, and regrouping in addition and subtraction (carrying & borrowing).

**Download ($5.65)**. Also available as a printed copy.

**Big Numbers**

**Naming Numbers**

These pages teach number naming skills covered in K8 math courses. Each page has an explanation, interactive practice and challenge games about naming numbers.

www.aaamath.com/B/nam.htm

**Megapenny
project**

Visualizes big numbers with pictures of
pennies.

www.kokogiak.com/megapenny/default.asp

**Powers of ten**

A 9-minute movie that illustrates the dramatic changes of scale when zooming in or out by powers of ten (40 powers of ten), starting from a picnic blanket and ending in the universe, and then starting from a hand to the proton inside an atom.

http://www.youtube.com/watch?v=0fKBhvDjuy0

**Cookie
dough**

Practice naming big numbers.

www.funbrain.com/numwords/index.html

**Keep My place**

Fill in the big numbers to this cross-number puzzle.

www.counton.org/magnet/kaleidoscope2/Crossnumber

**What does a TRILLION dollars look like?**

A great visual of what a trillion dollars looks like (with 100-dollar bills).

www.pagetutor.com/trillion

**Rounding and estimating**

**Rounding to the Nearest Ten**

A number line from 0 to 100 where you can illustrate to the students how to round numbers to nearest ten.

www.absorblearning.com/media/item.action?quick=mi

**Free rounding worksheets**

An unlimited supply of rounding worksheets with lots of options. You can choose to round to a fixed place value or make mixed rounding problems. Other options include the number problems, workspace, font size, and thousands separator as a period, comma, or space.

www.homeschoolmath.net/worksheets/rounding.php

**Rounding Sharks**

You'll be asked to round numbers in the thousands to the nearest hundred. Click on the shark that has the correctly rounded number.

www.free-training-tutorial.com/rounding/sharks.html

**Half-Court Rounding**

Choose either "1 pointer," "two pointer," or "three pointer button". You're given a rounding problem to the nearest ten, nearest hundred, or nearest tenth. If you answer correctly, the character makes a basket.

www.mrnussbaum.com/halfcourt.htm

**Rounding Master**

A Mathionare-type game where you answer rounding questions, and try to become a Rounding Master Math Millionaire.

www.mrnussbaum.com/roundingmaster.htm

**Soccer Math**

Round decimals to whole numbers, and you'll get a chance to kick the ball to the goal.

www.math-play.com/rounding-decimals-game-1/rounding-decimals-game.html

**Estimation**

Exercises about rounding whole numbers and decimals, front-end estimation, estimating sums and differences.

www.aaamath.com/B/est.htm

**Maximum Capacity**

Drag as many gorillas as you can into the elevator without exceeding the weight capacity of the elevator. You will have to use your quick addition, estimation, and number sense skills.

www.mrnussbaum.com/maximumcapacity.htm

**Home Run Derby Math**

Estimate answers to math problems. The closer you get, the further your ball will fly at-bat. In addition and subtraction, the numbers are in the thousands. In multiplication, the numbers are in the hundreds.

mrnussbaum.com/derby

**Math Mammoth Measuring 1**

A self-teaching worktext for 1st - 3rd grade that covers measuring length, weight, volume, and temperature, in both customary and measuring units. The book includes lots of hands-on projects.

**Download ($4.85)**. Also available as a printed copy.