Math Games

Grade 1 - Number

Standard 1.N.9 - Practice subtracting objects up to 10.

Included Skills:

Demonstrate an understanding of addition of numbers with answers to 20 and their corresponding subtraction facts, concretely, pictorially and symbolically, by:
• using familiar mathematical language to describe additive and subtractive actions.
• creating and solving problems in context that involve addition and subtraction.
• modelling addition and subtraction, using a variety of concrete and visual representations, and recording the process symbolically.
• Act out a given problem presented orally or through shared reading.
• Indicate if the scenario in a given problem represents additive or subtractive action.
• Represent the numbers and actions presented in a given problem by using manipulatives, and record them using sketches and/or number sentences.
• Create an addition problem based on personal experiences, and simulate the action with counters.
• Create a subtraction problem based on personal experiences, and simulate the action with counters.
• Create a word problem for a given number sentence (equation).
• Represent a given problem pictorially or symbolically to show the additive or subtractive action, and solve the problem.