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Each game has 10 questions.

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Unlock harder levels by getting an average of 80% or higher.

Earn up to 5 stars for each level

The more questions you answer correctly, the more stars you'll unlock!

Each game has 10 questions.

Green box means correct.

Yellow box means incorrect.

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Year 3 - Number and Algebra

Standard 3.OA.1.1 - Complete the subtraction sentence by filling in the missing number with operands up to 100.

Included Skills:

Number and place value

• Investigate the conditions required for a number to be odd or even and identify odd and even numbers

- identifying even numbers using skip counting by twos or by grouping even collections of objects in twos

- explaining why all numbers that end in the digits 0, 2, 4, 6 and 8 are even and that numbers ending in 1, 3, 5, 7 and 9 are odd

• Recognise, model, represent and order numbers to at least 10 000

- placing four-digit numbers on a number line using an appropriate scale

- reproducing numbers in words using their numerical representations and vice versa

• Apply place value to partition, rearrange and regroup numbers to at least 10 000 to assist calculations and solve problems

- recognising that 10 000 equals 10 thousands, 100 hundreds, 1000 tens and 10 000 ones

- justifying choices about partitioning and regrouping numbers in terms of their usefulness for particular calculations

• Recognise and explain the connection between addition and subtraction

- demonstrating the connection between addition and subtraction using partitioning or by writing equivalent number sentences

• Recall addition facts for single-digit numbers and related subtraction facts to develop increasingly efficient mental strategies for computation

- recognising that certain single-digit number combinations always result in the same answer for addition and subtraction, and using this knowledge for addition and subtraction of larger numbers

- combining knowledge of addition and subtraction facts and partitioning to aid computation (for example 57 + 19 = 57 + 20 ï¿½ 1)

• Recall multiplication facts of two, three, five and ten and related division facts

- establishing multiplication facts using number sequences

• Represent and solve problems involving multiplication using efficient mental and written strategies and appropriate digital technologies

- writing simple word problems in numerical form and vice versa

- using a calculator to check the solution and reasonableness of the answer

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