Divide 100 into 2, 4, 5 and 10 equal parts, and read scales/number lines marked in multiples of 100 with 2, 4, 5 and 10 equal parts

What this means, in plain words

A multiple of a number is what you get when you multiply it by a whole number, so 12 is a multiple of 3.

A number line puts numbers in order along a line, evenly spaced, so larger and smaller can be seen rather than worked out.

Multiplication is repeated addition of equal groups. Division shares a total into equal groups, or works out how many groups fit.