Adding and Subtracting Negative Numbers Challenge

This video tutorial explains how to add and subtract negative numbers. It begins by checking the signs of the numbers involved. If the signs are the same, the result keeps that sign. If the signs differ, three steps are followed: identify the larger digit, subtract the smaller from the larger, and assign the sign of the larger digit to the result. An example is provided where the answer is positive four.

What is the first thing you should check when adding or subtracting negative numbers?

• The order of operations

• The position of the numbers

• The signs of the numbers

• The value of the numbers

Tags

CCSS.7.NS.A.1C

If the signs of the numbers are the same, what will the sign of the answer be?

• Zero

• The same as the original numbers

• Negative

• Positive

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the first step when the signs of the numbers are different?

• Identify the bigger digit

• Multiply the numbers

• Divide the numbers

• Add the numbers

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What should you do after identifying the bigger digit?

• Subtract the smaller digit from it

• Add the smaller digit to it

• Multiply it by the smaller digit

• Divide it by the smaller digit

Tags

CCSS.5.NBT.B.5

What sign should the final answer have?

• The sign of the smaller digit

• The sign of the bigger digit

• Always positive

• Always negative

Tags

CCSS.7.NS.A.1C