Recently published items

Calculating the LCM and HCF of numbers by using prime factorisation.

Add, subtract, multiply and divide numerical fractions.

No description given

No description given

Fractions already have a common denominator. Addition and subtraction 50:50 split, when subtracting, the answer is negative half the time. Students shouldn't have to worry about reducing fractions by design.

Fractions don't have a common denominator. Need to find one. Addition and subtraction 50:50 split.

Students seem to not realise that $\frac{a}{b}\times c=c\times\frac{a}{b}=\frac{a\times c}{b}=\frac{c\times a}{b}=a\times c \div b=a\div b\times c=c\div b \times a \ne c \div (b\times a)\ldots $ etc. This question is my attempt to help rectify this.

The dimensions of a rectangle are given in m and cm. Compute the area or perimeter.

No description given

Useful for a review of the base 10 number system before introducing different bases and also just ensuring students understand how the base 10 system works.