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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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Grade 2 - The Number System

Standard 2.NS.1.9 - Complete the addition sentence by filling in the missing number with sums up to 100.

Included Skills:

Students will be expected to demonstrate an understanding of addition (limited to 1 and 2-digit numerals) with answers to 100 and the corresponding subtraction by

• using personal strategies for adding and subtracting with and without the support of manipulates

• creating and solving problems that involve addition and subtraction

• explaining and demonstrating that the order in which numbers are added does not affect the sum

• explaining and demonstrating that the order in which numbers are subtracted matters when finding a difference

• Performance Indicators

- N09.01 Solve a given story problem of any type by modelling it with materials or a diagram, and write a number sentence that represents the thinking in the solution.

- N09.02 Solve a given story problem of any type by writing a number expression and combining the numbers to complete the number sentences.

- N09.03 Match a number sentence to a given story problem.

- N09.04 Create an addition or a subtraction number sentence and a story problem for a given solution.

- N09.05 Model addition and subtraction using concrete materials or visual representations and record the process symbolically.

- N09.06 Add a given set of numbers in two different ways and explain why the sum is the same.

- N09.07 Recognize and create equivalent addition and subtraction number sentences.

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