Review Lesson 2-1: Solve the equation. Check your answer.
Enter only a number.
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2.
Review Lesson 2-1: Solve the equation. Check your answer.
Enter only a number.
10
3.
Review Lesson 2-1: Solve the equation. Check your answer.
Enter only a number.
10
4.
Review Lesson 2-1: Solve the equation. Check your answer.
Enter only a number.
30
5.
Review Lesson 1-4:
State whether the statement below is true or false.
If the statement is false, give a counterexample.
The difference of the absolute value of two numbers is the same as the difference of the two numbers themselves.
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Review Lesson 1-4:
State whether the statement below is true or false.
If the statement is false, give a counterexample.
Adding 1 to a number always increases its absolute value.
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7.
Review Lesson 1-7: Simplify the expression.
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8.
Review Lesson 1-7: Simplify the expression.
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9.
Review Lesson 1-7: Simplify the expression.
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10.
Vocabulary Review: Classify the equation(s) in which the variable is isolated.
The variable is isolated
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11.
Vocabulary Review: Match each equation on the left with its solution on the right.
You may need to zoom out to see all of the items. You can also place each item from the left column by selecting it (click it) then selecting (clicking on) the category for it.
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12.
Use Your Vocabulary: Identify and categorize each statement on the left based on whether or not it is a logical deduction.
A multiple of 5 always ends in 0 or 5. So, 240 is a multiple of 5.
If a number is a whole number, it is also a rational number. So, all rational numbers must be whole numbers.
Consider a + b = 100 for values of a and b. When a increases, b decreases. So, when b increases, a decreases.
