All Common Core: 7th Grade Math Resources
考试ple Questions
考试ple Question #1 :How To Add Negative Numbers
Add:
Simply the signs before solving. A positive sign multiplied with a negative sign will convert the sign to a negative, and a negative multiplied with a negative will convert the sign to a positive.
考试ple Question #31 :The Number System
is equal to which of the following?
This is a straightforward problem. Remember that when adding a negative number, you are actually subtracting:
Be sure to remember that the first number is also negative, meaning we are subtracting a number from a negative number:
The answer is -6.25.
考试ple Question #1 :Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
Evaluate:
The sum of two numbers of unlike sign is the difference of their absolute values, with the sign of the "dominant" number (the positive number here) affixed:
Subtract vertically by aligning the decimal points, making sure you append the 3.2 with a placeholder zero:
This is the correct choice.
考试ple Question #2 :Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
When we add a negative number, the sign turns negative. Since we are adding two negative numbers, we treat this as an addition problem and add a minus sign in the end..
考试ple Question #2 :Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
在处理负数时,看看这h number is greater.is greater thanand is negative so the answer is negative. We treat this as a subtraction problem.. Because our answer should be negative, the correct answer is.
考试ple Question #3 :Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
Solve:
Remember that adding a negative number is the same as subtracting that same number if it were positive.
考试ple Question #4 :Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
Sinceis greater thanand is positive, our answer is positive. We treat as a subtraction problem. Answer is.
考试ple Question #1 :Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
When a plus and minus sign meet, the sign is negative. The difference is.
考试ple Question #2 :Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
+和-满足时,符号是负的. When adding two negatie numbers, we treat as addition and add the minus sign in the end. Answer is.
考试ple Question #2 :Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
When a plus and minus sign meet, we have a minus sign.
Sinceis greater thanand is negative, our answer is negative.
We treat as a normal subtraction.
Answer is.
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