Mastering Integer Addition and Subtraction

This video tutorial by Mrs. Mata covers the basics of adding and subtracting integers. It introduces integers as positive and negative whole numbers and uses a song to help remember the rules for adding integers with the same or different signs. The tutorial provides examples of adding integers and demonstrates using a number line for visualizing integer operations. It also explains the KCC (Keep Change Change) method for converting subtraction problems into addition problems, followed by examples to reinforce the concept.

What are integers?

• Fractional numbers

• Positive and negative whole numbers

• Only negative whole numbers

• Only positive whole numbers

How do you handle adding integers with different signs?

• Subtract and keep the sign of the smaller number

• Add and keep the sign of the greater number

• Add and change the sign

• Subtract and keep the sign of the greater number

Tags

CCSS.7.NS.A.1C

What should you do when adding integers with the same sign?

• Subtract and change the sign

• Add and keep the sign

• Add and change the sign

• Subtract and keep the sign

Tags

CCSS.7.NS.A.1C

What is the result of adding -2 and -5?

• 7

• -7

• 3

• -3

Tags

CCSS.7.NS.A.1C

What does the 'keep change change' method refer to?

• A method for dividing integers

• A method for multiplying integers

• A method for subtracting integers

• A method for adding integers

Tags

CCSS.7.NS.A.1D

After applying 'keep change change', what should you do next?

• Follow the addition rules

• Follow the division rules

• Follow the multiplication rules

• Follow the subtraction rules

Tags

CCSS.7.NS.A.2C

What is the result of subtracting -12 and -5 using the 'keep change change' method?

• 7

• -7

• 17

• -17

Tags

CCSS.7.NS.A.1C

How do you handle an expression with three integers in a row?

• Work from right to left

• Only add the first two numbers

• Work from left to right

• Ignore the middle number

Tags

CCSS.7.NS.A.3

What is the result of 23 + (-48) + 7?

• 18

• -18

• -17

• -25

Tags

CCSS.7.NS.A.1C

What is the key takeaway from the lesson?

• Adding and subtracting integers is complex

• The 'keep change change' method simplifies subtraction

• Integers can only be positive

• You should always subtract when dealing with integers

Tags

CCSS.7.NS.A.1C