Addition and Subtraction

What is the result of adding two numbers called?

• Sum

• Difference

• Product

• Quotient

What is the difference between addition and subtraction?

• Addition combines quantities to find a total, while subtraction removes a quantity from another to find the remaining amount.

• Addition is used to find the average of numbers, while subtraction is used to compare two numbers.

• Addition involves multiplying numbers together, while subtraction involves dividing them.

• Addition is the process of finding the difference between two numbers, while subtraction is the process of finding the sum.

If you add 0 to a number, what is the result?

• The result is the same number (Identity Property of Addition).

• The result is always 0.

• The result is double the number.

• The result is the negative of the number.

What is the result of subtracting one number from another called?

• Sum

• Product

• Difference

• Quotient

What is the importance of place value in addition?

• It allows for the addition of fractions only.

• It ensures that digits are added in the correct columns (units, tens, hundreds, etc.).

• It simplifies the process of subtraction.

• It is only relevant in multiplication.

What is the commutative property of addition?

• The commutative property of addition states that changing the order of the addends does not change the sum (e.g., a + b = b + a).

• The commutative property of addition states that the sum of two numbers is always greater than either number.

• The commutative property of addition states that the sum of two numbers is equal to their product.

• The commutative property of addition states that adding zero to a number does not change its value.

How can you estimate the sum of 180 and 620?

• Round 180 to 200 and 620 to 600, then add them to estimate the sum as 800.

• Add 180 and 620 directly to get 800.

• Round 180 to 180 and 620 to 620, then add them to estimate the sum as 800.

• Round 180 to 200 and 620 to 500, then add them to estimate the sum as 700.

What is 753 - 378?

• 374

• 376

• 375

• 377

What is 180 + 620?

• 700

• 750

• 800

• 850

What is 926 - 658?

• 258

• 268

• 278

• 248