Level 3 miễn phí

Fraction kid

Years 5–6: fractions, decimals, angles and volume. 30 lessons.

Decimal numbers: koruna and hellers What the point in 24.90 means, and what tenths and hundredths are. ⏱ 15 minutes Practice
Comparing decimal numbers How to tell reliably which decimal number is bigger. ⏱ 14 minutes Practice
Adding and subtracting decimal numbers Adding and subtracting in columns: the point belongs under the point. ⏱ 15 minutes Practice
Multiplying decimal numbers Multiplying a decimal number by ten, a hundred and a whole number. ⏱ 15 minutes Practice
Dividing decimal numbers Dividing by ten and a hundred by shifting the point, and dividing by a whole number. ⏱ 16 minutes Practice
A fraction: a part of a whole What the numerator and the denominator say, and how to work out a fraction of a whole. ⏱ 15 minutes Practice
Comparing fractions How to tell the bigger fraction: same denominators, same numerators and a half as a mark. ⏱ 15 minutes Practice
Expanding and simplifying fractions The same fraction in a different coat: expanding and simplifying. ⏱ 16 minutes Practice
Adding fractions with the same denominator Adding and subtracting fractions when the parts are the same size. ⏱ 14 minutes Practice
Adding fractions with different denominators A common denominator: how to add 1/2 and 1/4 and pairs like that. ⏱ 17 minutes Practice
A fraction and a decimal number Two write-ups of the same thing: how to convert between fractions and decimal numbers. ⏱ 15 minutes Practice
Divisibility: 2, 3, 5, 10 How to tell without dividing whether a number can be divided with no remainder. ⏱ 15 minutes Practice
Prime numbers Numbers that cannot be broken up: primes and composite numbers. ⏱ 15 minutes Practice
Highest factor, lowest multiple HCF and LCM: common factors and common multiples in practice. ⏱ 17 minutes Practice
An angle and a protractor What an angle is, how it is marked and how to measure it with a protractor. ⏱ 16 minutes Practice
Kinds of angles Acute, right, obtuse, straight and full angle — how to tell them at a glance. ⏱ 14 minutes Practice
Adjacent and vertically opposite angles Angles on a line and at a crossing: adjacent add to 180°, vertically opposite are the same. ⏱ 15 minutes Practice
The sum of angles in a triangle Why the angles of a triangle always make 180° and how to work out the third angle. ⏱ 15 minutes Practice
Area of a square and a rectangle Area as a count of little squares: S = a × b and why it differs from perimeter. ⏱ 16 minutes Practice
Units of area Why a square metre has 10 000 cm² and how to convert units of area. ⏱ 16 minutes Practice
Surface area of a cube and a cuboid Surface area as the area of all faces: a net of a solid and the formula 2 × (ab + bc + ac). ⏱ 17 minutes Practice
Volume of a cube and a cuboid Volume as a count of little cubes inside: V = a × b × c. ⏱ 16 minutes Practice
Units of volume Litres and cubic units: 1 l = 1 dm³ and jumps of a thousand. ⏱ 16 minutes Practice
Integers: frost and debt Negative numbers on a thermometer, in a wallet and on a number line. ⏱ 15 minutes Practice
Adding and subtracting integers Counting with negative numbers step by step on a number line. ⏱ 16 minutes Practice
Coordinates: a map and a point A coordinate system: how to write and find a point with two numbers. ⏱ 15 minutes Practice
The mean of marks The arithmetic mean: add, divide by how many — and understand the result. ⏱ 15 minutes Practice
Word problems with fractions A method for word problems: find the whole, find the part, answer in a sentence. ⏱ 17 minutes Practice
Project: measure your room A big project: perimeter, area, volume and a plan of a room in one. ⏱ 17 minutes Practice
Fraction kid finale A big recap of the level: ten challenges across everything you can do. ⏱ 17 minutes Practice

Coding is still on the home page — this course does not replace it.