Expressions with the same base, can be manipulated using the Law of Indices. Change each expression into base of 3 or 5 before applying the laws of indices and decode the puzzle. I f you like this resource search for Index Laws 1 , 2 and 3. Key words: index, indices, notation, expression, index laws, base, bases, power, powers, raining a power to a power, multiply, divide, puzzle, joke, decode, worksheet, practice, math, maths joke, mathematics, (unlock, untangle, understand). Updated 28_09_16

Complete each maze in the most efficient way possible. Add the values of all the squares visited together, match the answer to the appropriate letter to work out the punchline to the joke. Ideal as a diagnostic tool to identify numeracy deficit. Key words: add, addition, revision activity, homework, diagnostic activity for number, total, fraction, mixed numbers, improper fractions, directed numbers, calculation maze, puzzle, joke, practice, math joke, maths jokes, mathematics, did you hear about the four blokes who stole a calendar, unlock untangle understand.

Students decode a paragraph to find out about the origins of the decimal point that is used today. The puzzle relies on a knowledge of powers of ten. Devices within the puzzle allow students to self monitor their work and correct errors (answers included). For more number resources search for: Place Value - powers of 10, decode the adoption of negative numbers or decode the origins of our decimal number system. Key words: Standard form, Units, Tens, tenths, hundredths, powers of 10, place value, message, decode, origin, decimal point, decimals, worksheet, history of mathematics, math, maths, (unlock untangle understand).