Topics · 7 courses · 15 lessons
Number
Place value to powers: the arithmetic everything else is built from.
Why this order
Each course leans on the one before: place value makes the written methods work, those make order of operations make sense, and integers, fractions and indices extend the same rules to new kinds of number.
Step 1 · MA3-RN-01
Place value & decimals
What each digit is worth — and what happens when you multiply or divide by 10.
2 lessons · 0/5
Step 2 · MA3-AR-01
Adding & subtracting
Mental shortcuts that keep the answer the same, and estimating to check.
2 lessons · 0/5
Step 3 · MA3-MR-01
Multiplying & dividing
Factors, primes, the area model, and what to do with a remainder.
2 lessons · 0/5
Step 4 · MA3-MR-02
Order of operations
Brackets first, then × and ÷, then + and − — and why everyone has to agree.
2 lessons · 0/5
Step 5 · MA4-INT-C-01
Integers
The number line below zero, and the sign rules for all four operations.
2 lessons · 0/5
Step 6 · MA4-FRC-C-01
Fractions, decimals & percentages
Equivalence, the four operations with fractions, and percentage problems.
3 lessons · 0/6
Step 7 · MA4-IND-C-01
Indices & primes
Repeated multiplication written short — and the laws that fall out of it.
2 lessons · 0/5
Test the whole strand
A mixed mock from every number course, marked at the end.