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Building Expressions |
Click on a number to complete the addition or subtraction expression before time runs out. The program allows you to select from a variety of formats, with unknowns in various positions. |
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Deep Sea Duel |
Collect cards that add up to a specified sum. Choose how many cards, types of numbers, and level of strategy. |
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Math Lines |
Race to pair numbers that add up to 10. Or select this version of Math Lines and choose your own target number. |
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Math Maddness |
Fill in the addend, subtrahend or factor to score points in this basketball arcade game. |
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Missing Number |
Select a target number (the total) and challenge students to place the missing addend in a number sentence. Timed for one minute. Includes suggestions for playing as a class game. |
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Numbers to 20 Bingo |
Choose from 6 bingo games--highlighting a variety of math strands--to use with an entire class. Print the bingo game cards and use an online machine to select the numbers. Combines desktop and online resources. |
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Penguin Addition and Subtraction Facts |
Animate penguins to explore addition and subtraction facts to twenty. Penguins jump between icebergs to demonstrate addition and dive under water to show subtraction. Click to view the problem on a number line. |
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Speedy Pictures |
Add numbers modeled by one of the following: 10 or 20 bead Rekenrek, dice, fingers, egg cartons, money discs. Adjust the viewing time as needed. Since the pictures are only shown for a short time, students must use addition strategies to add the beads. Uses Java. |
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Sums Stacker |
Drag values from stack to stack until the sum of each stack equals the target number. Choose from values shown in: dice, numbers, money. Try to make as few moves as possible. Choose from solve or race modes. Requires Java. |
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Sum Sense Subtraction |
Drag and drop number cards--with unknowns in all positions--to make a subtraction equation. |
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Catapult Count On |
Add a single digit to a double digit to jump to the next multiple of ten on a number line and destroy a castle. Pull down on the catapult to adjust the number added on the number line. Check "hide jumps" to use mental math. See help video for demo. |
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