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.
MathMoney & Change
Money is the one place where two-decimal arithmetic is used every day. Below: how to subtract from a round note without borrowing three times, and the addition order that avoids carrying mistakes.
Choose your difficulty
Pick a level to start playing. You can switch at any time.
How to play
Work out the change or the total, then tap the correct amount.
Tip: your progress and best score are saved in this browser only.
Related games
Multiplication Trainer
Build multiplication fluency with a free, timed browser game. Learn the grid method, spot-friendly factors, and beat your best streak.
MathDecimal Drill
Practice adding and subtracting decimals with a free, browser-based game. Align the decimal point, keep your place value, and raise your score.
MathPercent Practice
Master percentages with a free, browser-based game. Find the part, the whole, or the rate, and learn the 10% shortcut that speeds everything up.
MathArea & Perimeter
Find area and perimeter of rectangles, squares, triangles, and circles in a free, timed browser game. Learn the formulas that never change.
MathDivision Practice
Practice division with a free, timed browser game. Exact answers only, three difficulty levels, and the checks that make division facts stick.
MathMean, Median & Mode
Practice averages in a free, timed browser game. Learn when to use the mean, the median, or the mode, and why the three rarely agree.
MathRatio Practice
Simplify ratios and find the missing term in a free, timed browser game. Includes the scale-factor method that avoids cross-multiplying.
MathRounding Numbers
Round to the nearest 10, 100, or whole number in a free, timed browser game. Includes the staged-rounding trap to avoid.
MathGCF & LCM
Find the greatest common factor and least common multiple in a free, timed browser game. Includes the size test that rules out most wrong answers.
MathNegative Numbers
Practice integer addition and subtraction with negatives in a free, timed browser game. Includes the sign rules stated plainly.
MathPowers & Square Roots
Practice exponents and square roots in a free, timed browser game. Every root is exact, and the perfect-square table is the whole shortcut.
MathMetric Conversion
Convert metric units in a free, timed browser game. Every step is a power of ten, so it is really just moving the decimal point.
MathAngles & Missing Degrees
Find the missing angle in a free, timed browser game. Complementary, supplementary and triangle angles, with the shortcuts that beat the countdown.
MathClock & Time Math
Add minutes, measure elapsed time and cross midnight in a free, timed browser game. Real clock arithmetic, not decimal arithmetic.
MathFractions to Decimals
Convert fractions to decimals in a free, timed browser game. Denominators that always terminate, so every answer is exact.
MathPercent Change
Work out percentage increases and decreases in a free, timed browser game. The difference is always divided by the original value.
MathOrder of Operations
Solve two-operator expressions in a free, timed browser game. Multiplication before addition, every single time.
MathVolume of Boxes
Find the volume of cubes and boxes in a free, timed browser game. Three dimensions, one multiplication chain, and the missing-side variant.
MathFraction of a Number
Work out a fraction of a whole number in a free, timed browser game. Divide by the denominator first, then multiply — or the other way round.
MathEstimating Sums
Round to the nearest ten and estimate in a free, timed browser game. The skill you use at a till, not in an exam.
MathExpanded Form
Turn a number written in place-value parts back into digits, in a free timed browser game. 3,000 + 400 + 70 + 5 is 3,475.
MathRemainders
Find the remainder after division in a free, timed browser game. The number left over can never reach the divisor.
MathCompare Fractions
Decide which of two fractions is larger in a free, timed browser game. Cross-multiply instead of converting.
MathType the Answer
Type the answer instead of choosing it, in a free timed browser game. No options to guess between — just the arithmetic.
MathWhat you are actually practicing
Money is the one place where two-decimal arithmetic is used every single day, and it is also where careless slips cost real money. A price of 7.35 and a note of 10.00 look simple, yet subtracting them trips people up because there are three separate borrows hiding inside.
This game drills the two jobs that matter: working out change from a round amount, and adding prices to get a total.
How the game works
You are shown an amount calculation and four answers. Pick the correct one before the countdown ends; a wrong pick reveals the right value immediately. Best scores stay in this browser.
Easy takes change from 10.00. Medium adds two prices. Hard takes change from 50.00, where the numbers are bigger and the borrows are easier to lose track of.
The arithmetic worth knowing
Change by complement: from 10.00, pay 7.35 and you get 2.65 — because 7.35 + 2.65 = 10.00.
Adding prices: 3.25 + 1.80 = 5.05. The carry happens in the cents column first.
Strategies that actually raise your score
Count up instead of subtracting. From 7.35 to 8.00 is 0.65, then to 10.00 is 2.00. Total 2.65. Counting up needs no borrowing at all, which is why cashiers do it that way.
Round the price, then correct. 9.98 from 10.00 is 0.02 — subtract from a clean number and adjust, rather than borrowing across four columns.
Line up the decimal point. Under a countdown the usual failure is adding tenths to hundredths. Reading each value as cents (325 + 180) removes that risk entirely: 505 cents is 5.05.
Sanity-check the magnitude. Change from 10.00 can never exceed 10.00, and a total of two prices under 10.00 can never reach 20.00. Out-of-range options are wrong before you calculate.