go up the number line (move to the right). When subtracting a positive number, go down the number line (move to the left). Start at \(3\) and go down \(10\). The answer is \(- 7\).

To add -4 and 5, draw the starting number on a number line and count to the right when adding numbers. What is the difference in temperature between a desert at 40 °C and a mountain top at -2 °C?

When you're subtracting one number from another ... while the smaller number always faces the point where the two lines meet. 8. Greater Than or Equal To/Less Than or Equal To Symbols (≥ ...

the brontosaurus. And the planet Pluto. If your addition problems don’t become multiple equations, your subtraction problems ...

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