pre-algebra Numeracy and Arithmetic

By powers of ten I mean a 1 followed by some 0s. The scientific notation questions will take care of the power of ten notation.

old question, way too many things in one question! I have made better questions out of each part now.

I think I prefer the other question I made called "Rounding to 0, 1, 2 and 3 decimal places"

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.

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Adding, subtracting and multiplying two and three digit numbers. Now with worked solutions.

Integers in bases from 2 to 9 and converting them to base 10.

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.

Students seem to miss the fact that division is actually multiplication by the reciprocal or the inverse of multiplication. This question attempts to address that.

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 Basics, percentage of an amount, converting to fractions and decimals.

Dealing with adding, subtracting, multiplying, dividing, and taking powers of negative numbers.

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Add, subtract, multiply and divide numerical fractions.