Fraction Addition & Subtraction
Practice fraction addition and subtraction with a free, browser-based math game. Includes step-by-step strategy, common mistakes, and classroom tips.
MathChoosing from four options lets you guess; typing does not. Below: why recall under a timer is a different skill from recognition, and how to keep the answer in your head while your fingers work.
Pick a level to start playing. You can switch at any time.
Work out the answer, type it in the box, then press Enter or Submit.
Tip: your progress and best score are saved in this browser only.
Practice fraction addition and subtraction with a free, browser-based math game. Includes step-by-step strategy, common mistakes, and classroom tips.
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MathRound to the nearest 10, 100, or whole number in a free, timed browser game. Includes the staged-rounding trap to avoid.
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MathDecide which of two fractions is larger in a free, timed browser game. Cross-multiply instead of converting.
MathChoosing from four options lets you guess. Typing does not. The moment you have to produce the answer, recall replaces recognition, and the thing being tested changes.
That difference matters. A learner can pick the right answer out of four by remembering one feature of each option. Typing forces the whole thing to be reconstructed from nothing.
You are shown a calculation, type the answer, and press Enter. A wrong answer is revealed immediately, so a miss costs a point but tells you what the right value was.
Easy uses two-digit sums. Medium uses three-digit sums and differences. Hard uses multiplication and division.
Type it, do not select it. The whole point is that the answer comes out of your head rather than being recognised.
Do the work first, then type. Reading the numbers, computing, and typing are three different steps. Trying to do all three at once is where the errors come from.
Say the answer under your breath. Naming the result before typing it catches arithmetic slips that staring at the screen does not.
Watch the operator. Subtraction and division fail more often than addition, and the usual cause is reading the sign in a hurry.
Keep the numbers in your head, not on screen. Glancing back at the expression costs more than it saves, and re-reading mid-calculation is how digits get swapped.
Type digits in place, left to right. For a three-digit answer, say the hundreds first. Typing out of order is a common source of otherwise-correct answers being marked wrong.
Use the timer as a pace, not a threat. Typing is slower than clicking, so the seconds-per-question here are longer than in the choice games. That is deliberate.
Check the sign of your answer before pressing Enter. One extra second avoids the most common way to lose a point you had already earned.