5th Grade Math 1st Semester Review 01 - Non-Calculator Section

Front

What is the order of operations in math?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed. The acronym PEMDAS helps remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What operation should be performed first in the expression: 7 + 10 ÷ 5 • 8 - 3?

Back

10 ÷ 5 should be performed first.

Front

In the expression 5(3 + 9) - 10 ÷ 2 + 5, what does the parentheses indicate?

Back

Parentheses indicate that the operations inside them should be performed first.

Front

What is the result of 5.25 ÷ 0.5?

Back

The result is 10.5.

Front

How do you round the number 97.538 to the nearest tenth?

Back

You look at the hundredths place (3) and since it is less than 5, you round down to 97.5.

Front

What is the metric unit of length used to measure the roses?

Back

Centimeter (cm) is the metric unit of length used.

Front

How do you compare decimal numbers to determine which is greater?

Back

Align the decimal points and compare digit by digit from left to right.

Front

What is the correct order of the rose lengths from greatest to least: Bob's 3.821 cm, Joe's 3.81 cm, Sam's 3.808 cm, Tom's 3.8 cm, Jim's 3.08 cm?

Back

Bob, Joe, Sam, Tom, Jim.

Front

What is the first step in solving the expression 5(3 + 9) - 10 ÷ 2 + 5?

Back

The first step is to solve the expression inside the parentheses: 3 + 9 = 12.

Front

What is the error in Bob's solution in Step 2 of his problem?

Back

Bob incorrectly simplified 5(12) to 5(2) instead of 60.