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8th Grade Math | MathHelp.com
By MathHelp.com
This lesson covers estimating products. Students learn to estimate a product or quotient by first rounding each number to one non-zero digit. For example, to estimate 8,291 x 27, first round 8,291 down to 8,000, and round 27 up to 30, then multiply 8,000 x 30 to get 240,000.
Imaginary Numbers | MathHelp.com
By MathHelp.com
This lesson covers estimating quotients. Students learn to estimate a product or quotient by first rounding each number to one non-zero digit. For example, to estimate 8,291 x 27, first round 8,291 down to 8,000, and round 27 up to 30, then multiply 8,000 x 30 to get 240,000.
Estimating Products | MathHelp.com
By MathHelp.com
This lesson covers perimeter. Students learn that the perimeter of a figure is the distance around the figure, so the perimeter of a figure can be found by adding the lengths of its sides. Since all four sides of a square are equal in length, the perimeter of a square that has a side with a length of 8 feet is 8 + 8 + 8 + 8, or 32 feet. Since opposite sides of a rectangle are equal in length, the perimeter of a rectangle that is 4.5 meters by 6.2 meters is 4.5 + 4.5 + 6.2 + 6.2, or 21.4 meters.
Estimating Quotients | MathHelp.com
By MathHelp.com
This lesson covers commutative property of multiplication, which states that a x b = b x a. For example, 10 x 4 = 4 x 10.
Rounding Whole Numbers 3
By Khan Academy
You're becoming a pro at rounding whole numbers. Here's another example exercise. Can you do it first before watching the end of the video?
[4.NBT.3-1.0] Rounding - Common Core Standard
By Freckle education
Use place value understanding to round multi-digit whole numbers to any place.
Rounding (MCC4.NBT.3)
By Brooke Kisor
Use place value understanding to round multi-digit whole numbers to any place.
Fractions to whole numbers (3.NF.3C)
By Far East Software
Express whole numbers as fractions, and recognize fractions that are equivalent to whole numbers.
Interpret Products of Whole Numbers (3rd Grade)
By Paulding Country School District
products of whole numbers
Comparing and Ordering Whole Numbers
By TheFreeTutor
This video describes and explains some easy steps for comparing and ordering whole numbers. This is a middle school math skill that should be mastered by the sixth grade.
Compare Whole Numbers
By MathNook
MathNook presents Compare Whole Numbers an educational video resource on math.
eSpark Learning: Round Whole Numbers to the Nearest 10 or 100 (3. NBT, Quest 2)
By espark learning videos
use knowledge of place value to round whole numbers to the nearest 10 or 100.
[3.NF.3c-1.0] Whole Numbers as Fractions - Common Core Standard
By Freckle education
Explain equivalence of fractions in special cases. Express whole numbers as fractions, and recognize fractions that are equivalent to whole numbers.
eSpark Learning: Round Whole Numbers to the nearest 10 or 100 (3 NBT, Quest 1)
By espark learning videos
Standard 3.NBT: Use place value understanding to round whole numbers to the nearest 10 or 100.
Rounding whole numbers 3 | Arithmetic properties | Pre-Algebra | Khan Academy
By Khan Academy
You're becoming a pro at rounding whole numbers. Here's another example exercise. Can you do it first before watching the end of the video?
Rounding whole numbers example 2 | Arithmetic properties | Pre-Algebra | Khan Academy
By Khan Academy
Another rounding exercise using whole numbers. Having fun yet? We are!
Rounding whole numbers example 1 | Arithmetic properties | Pre-Algebra | Khan Academy
By Khan Academy
Here's a whole numbers rounding exercise. Let's do this example together.