Math 4th Grade Unit 4 Lesson 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Factor | the numbers multiplied together to find a product. Example 3 x 6 = 18
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| Product | The answer to a multiplication problem.
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| Commutative Property of Multiplication | Factors can be multiplied in any order and the product remains the same.
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| Identity Property of Multiplication | The product of any number is that number.
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| Zero Property of Multiplication | The product of any number and zero is zero.
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| Distributive Property of Multiplication | Breaking apart problems into two simpler problems. (3 x 21) = (3 x 20) + (3 x 1)
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| Array | a way of displaying objects in rows and columns.
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| Area Model | The number of square units needed to cover the region.
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| Multiplication | A mathematical operation where a number is added to itself a number of times.
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| Multiple | The product of any two whole numbers.
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| Row | Items in an array arranged in a horizontal line.
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| Column | Items in an array arranged in a vertical line.
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| Dimensions | Refers to the length, width, and height of a shape.
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| Fact Family | A group of related facts using the same set of numbers.
Example: 3 x 5 = 15; 5 x 3 = 15; 15 / 3 = 5; 15 / 5 = 3
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| Compatible Number | Numbers that are easy to compute mentally.
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| Estimate | An approximate rather than an exact answer.
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| Round | To estimate a number to the nearest ten, hundred, or thousands.
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| Approximate | To estimate a number amount, or total, often rounding it off to the nearest 10 or 100.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
twaller
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