Chapter 5 -Add/Subtract Decimals

Question 1

Sum

Answer 1

The answer to an addition problem.

Question 2

Difference

Answer 2

The answer to a subtraction problem

Question 3

Estimate

Answer 3

A number close to an exact value. An estimate indicates about how much.

Question 4

Inverse operations

Answer 4

Operations that undo each other.

Question 5

Round

Answer 5

To find the approximate value of a number.

Question 6

Associative Property

Answer 6

States that the way in which numbers are grouped does not change the sum or product.

Question 7

Identity property

Answer 7

States that the sum of any number and zero equals the number and the product of any number and one equals the number.

Question 8

Commutative property

Answer 8

States that the order in which numbers are added does not change the sum and the order in which products are multiplied does not change the product

Question 9

Exact answer

Answer 9

When computing and using actual numbers to find the answer.

Question 10

Place value

Answer 10

The value given to a digit by its position in a number.

Question 11

Regroup

Answer 11

The process of making groups of 10 when adding or subtracting two digit (or more) numbers.