Year 2 Mathematics
Lesson 1: Numbers to 1000
In Year 2, we work with numbers up to 1000. We learn about place value - how the position of a digit in a number determines its value. For example, in the number 347, the 3 represents 300 (hundreds), the 4 represents 40 (tens), and the 7 represents 7 (ones).
Practice Questions
What is the value of the 5 in the number 257?
The 5 is in the tens place, so it represents 50.
How would you write 'six hundred twenty-four' as a number?
624
What number is 10 more than 388?
398
Addition and Subtraction Strategies
Mental Strategies for Addition and Subtraction
We learn different strategies to solve addition and subtraction problems mentally. These include counting on, counting back, using doubles, near doubles, and bridging to ten.
For example, to solve 17 + 9, we can think: 17 + 10 = 27, then subtract 1 to get 26. This is called making a friendly number.
Practice Your Mental Maths!
Try these calculations: 36 + 27, 53 - 18, 45 + 19
Practice Questions
What is 36 + 27? Use the bridging strategy.
36 + 20 = 56, then 56 + 7 = 63
What is 53 - 18? Use the counting back strategy.
53 - 10 = 43, then 43 - 8 = 35
Australian Money
Recognising and Counting Money
We learn to recognise all Australian coins and notes and count different combinations of money. We also solve simple problems involving money.
Practice Questions
How much money is two $1 coins, three 20c coins, and one 50c coin?
$2 + 60c + 50c = $3.10
If you have $5 and you buy something that costs $3.50, how much change will you get?
$1.50
Telling Time
Reading Analog and Digital Clocks
We learn to tell time to the quarter hour and use language such as 'o'clock', 'half past', 'quarter past', and 'quarter to'. We also learn to read digital time.
What time is shown? How would you say this time?
Practice Questions
If the clock shows 3:45, how would you say this time?
Quarter to four
How would you write 'half past seven' in digital time?
7:30
Data Collection and Graphs
Creating and Interpreting Simple Graphs
We learn to gather data and create simple picture graphs and column graphs. We also learn to interpret information from graphs.
Practice Questions
Looking at the graph above, which fruit is most popular?
Apples
How many more people like apples than bananas?
2 more people
2D and 3D Shapes
We learn to identify, describe, and classify 2D shapes including triangles, quadrilaterals, pentagons, and hexagons. We also learn about 3D objects like cubes, spheres, cylinders, and cones.
Practice Questions
How many sides does a hexagon have?
6 sides
What is the difference between a cube and a sphere?
A cube has flat faces and straight edges, while a sphere is round with no edges or vertices.
Measurement
We learn to compare and order objects based on length, area, volume, capacity, and mass. We use informal units like paper clips, blocks, or cups to measure.
Practice Questions
If a pencil is 10 paper clips long, and a ruler is 15 paper clips long, which is longer?
The ruler is longer.
If a container holds 5 cups of water, and another holds 3 cups, which has greater capacity?
The container that holds 5 cups has greater capacity.