8th Grade Math Midterm Review
Flashcard
•
Mathematics
•
8th Grade
•
Hard
+7
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is scientific notation?
Back
A way of expressing numbers that are too large or too small to be conveniently written in decimal form, using powers of ten.
Tags
CCSS.8.EE.A.3
2.
FLASHCARD QUESTION
Front
How do you multiply numbers in scientific notation?
Back
Multiply the coefficients and add the exponents. For example, (2x10^3) * (3x10^4) = 6x10^(3+4) = 6x10^7.
Tags
CCSS.8.EE.A.4
3.
FLASHCARD QUESTION
Front
What is the formula for finding the mass of multiple objects?
Back
Mass = Number of objects x Mass of each object.
Tags
CCSS.3.MD.A.2
4.
FLASHCARD QUESTION
Front
How do you solve a system of equations using substitution?
Back
1. Solve one equation for one variable. 2. Substitute that expression into the other equation. 3. Solve for the remaining variable.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
FLASHCARD QUESTION
Front
What is the square root of a number?
Back
A value that, when multiplied by itself, gives the original number. For example, the square root of 9 is 3.
Tags
CCSS.8.EE.A.2
6.
FLASHCARD QUESTION
Front
How do you determine the range of integers for a square root?
Back
Find two consecutive integers between which the square root lies. For example, √77 is between 8 (8x8=64) and 9 (9x9=81).
Tags
CCSS.8.NS.A.2
7.
FLASHCARD QUESTION
Front
What is the process for dividing numbers in scientific notation?
Back
Divide the coefficients and subtract the exponents. For example, (6.9x10^7) / (2.3x10^-3) = (6.9/2.3)x10^(7-(-3)) = 3x10^(7+3) = 3x10^10.
Tags
CCSS.8.EE.A.4
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