Multiplying, dividing and mixed operations · Usually met around P2
Multiplication and times tables
From “What multiplying means: equal groups” to “How many combinations”, step by step, each skill with its methods, worked examples and answers.
Skills in this topic, easy to hard
- What multiplying means: equal groupsCount the groups and how many in each
- 2, 5 and 10 times tables×5 is half of ×10
- Commutative property: multiplying in either order5 × 3 = 3 × 5: swap them, same answer
- 3 and 4 times tables×4 is double, then double again
- 6 and 9 times tables×6: ×3 doubled. ×9: ×10 less one lot
- 7 and 8 times tables×8: double three times. ×7: ×5 + ×2
- 11 and 12 times tables×12 is ×10 plus ×2
- Times tables 1–12All mixed up: answer on sight
- How many combinationsEach with each: tops × skirts