19
Read and compare large numbers
Read, write, order and compare numbers using place value.
Chapter route
Number Play
This chapter page turns the high-level subject view into an ordered learning slice, with direct links from curriculum items into topic and skill detail.
Ordered curriculum items
Each curriculum item can now route into topic and skill-level detail.
20
Use estimation with numbers
Estimate sums, differences or counts to judge reasonableness.
21
Solve number riddles using place value
Use digit and place-value clues to form numbers.
22
Find factors and multiples
List factors and multiples of numbers systematically.
23
Use divisibility rules
Apply divisibility rules for common divisors such as $2$, $3$, $5$, $9$ and $10$.
24
Identify prime and composite numbers
Classify numbers as prime or composite using factors.
25
Use number properties in puzzles
Use odd-even, factor, multiple and place-value clues to solve puzzles.
26
Find common factors and multiples
Identify common factors or common multiples in simple situations.
27
Check number statements
Decide whether number claims are always true, sometimes true or false.
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