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CALCULATOR

## Adding & Subtracting Integers Calculator We have some questions for you! Help us out through this
INTRO
When it comes to adding and subtracting integers, we like to imagine we’re digging and filling to help us keep track of when we need to go up and down the number line ↕️.
The sign or combination of signs a number comes after tells us whether we need to fill up or dig down:
 Sign(s) Action Visual Dig down Dig down(Adda hole) Fill up Fill up(Take awaya hole)
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KEY STEPS

## How to Add & Subtract Integers

### Step 1. Imagine the first number.

• If the first number is positive, we fill up to the value of the first number.
• If the first number is negative, we dig down to the value of the first number.

### Step 2. Imagine the second number.

• If the second number comes after a plus sign, we fill up to the value of the second number.
• If the second number comes after a minus sign, we dig down to the value of the second number.

### Step 3. Combine the numbers.

Overlap the piles and/or holes. The top of the final pile lines up with the final answer.
LESSON
Single Sign
PRACTICE
Single Sign
LESSON
Double Signs
PRACTICE
Double Signs
CONCLUSION
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