standard_description: Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
Grade 4 expectations in this domain are limited to whole numbers less than or equal to 1,000,000.
problem_activity: Task
Each shape below has a line of symmetry. Draw a line of symmetry for each shape.
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Not every shape has an line of symmetry. Which of the four shapes below have a line of symmetry? Draw a line of symmetry on them.
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Some shapes have many lines of symmetry. Draw all the lines of symmetry you can on the shape below. How many are there?
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aligns: no