Counting to 20, and zero
Count things one by one, write the numbers to 20, and learn what zero means.
- Counting to 5
- Counting to 10
- Zero means none
- More, fewer or the same
- One more, one less
- Counting to 20
6 chapters planned
Number
Every book on this topic, lowest level first. Each one builds on the book above it. If a book feels hard, go back up the ladder to the one before.
Numbers to 100
Count in tens and ones, and find any number up to 100.
- Tens and ones
- Counting to 100
- The hundred square
- Counting in 2s, 5s and 10s
- Odd and even
- Bigger, smaller and in order
6 chapters planned
NextYou are here Big numbers and place value
Read and write big numbers, and know what each digit is worth.
- Hundreds, tens and ones
- Thousands
- Counting on in big steps
- Comparing and ordering
- Rounding and estimating
- Up to a million, and lakhs
6 chapters
NextYou are here Negative numbers, factors and powers
Go below zero, break numbers into factors and primes, and write repeated multiplying as powers.
- Below zero
- Calculating with negative numbers
- Multiples and factors
- Quick tests for dividing
- Prime numbers
- Prime factors, common factors and multiples
- Squares, cubes and roots
- Powers of ten
8 chapters
NextYou are here Powers, roots, surds and standard form
Use the laws of powers, work with roots and surds, and write huge and tiny numbers in standard form.
- Laws of powers
- Zero and negative powers
- Roots and fractional powers
- Standard form
- Calculating in standard form
- Rational and irrational numbers
- Surds
- Accuracy and bounds
8 chapters