Solve the following expression using the number line below:
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Solve the following expression using the number line below:
Let's first locate negative 10 on the number line.
Now let's handle the operation in the exercise, given that the operation is
Since the number 3 is greater than 0, we will move three steps to the right from negative 10, where each step represents one whole number as follows:
We can see that the number we reached is negative 7.
a is negative number.
b is negative number.
What is the sum of a+b?
On a number line, positive numbers increase as you go right. When you add a positive number, you're making the value larger, so you move in the direction of increasing numbers - to the right!
Use this simple rule: Positive = Right, Negative = Left. Adding +3 means move 3 steps right. Adding -3 would mean move 3 steps left.
That's normal! When you start with a negative number like -10 and add a smaller positive number like +3, you'll still get a negative result (-7). The number just becomes less negative.
Yes! Think of it as: . But using the number line helps you visualize why this works and builds stronger number sense.
-10 + 3 = -7 (starting from negative territory, moving right but staying negative)
10 + 3 = 13 (starting from positive territory, moving further right)
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