Math Expressions

Choose the best ESTIMATE of the product.

38 x 30 =

• 30 x 30 = 900

• 40 x 30 = 1,200

• 50 x 20 = 1,000

• 50 x 30 = 1,500

A farmer buys 4 cows. If each cow costs $543, how much will the cows cost altogether?

• $2,062

• $2,072

• $2,162

• $2,172

A toy company employee ships 168 jigsaw puzzles on Monday. He ships 175 jigsaw puzzles on Tuesday. Each puzzle weighs 4 pounds. How many pounds do the jigsaw puzzles weigh in all?

Hint: You need to use 2 OPERATIONS.

• 1,372 pounds

• 1,362 pounds

• 1,232 pounds

• 1,222 pounds

Season tickets at an amusement park cost $57 per ticket. If someone buys 5 tickets, what will be the total cost?

• $255

• $265

• $275

• $285

Original numbers were multiplied by the powers of 10 to create new numbers as seen in the chart above.

Which original numbers were created by 10^1 to create new numbers. Choose all that apply.

• 7

• 25

• 19

• 471

• 368

Select all the numbers that round to 3.15 when rounded to the nearest hundredth.

• 3.157

• 3.155

• 3.151

• 3.159

• 3.154

Which statements about the values 57 and 570 are true?

• 570 is 100 times more than 57

• 570 is 10 times more than 57

• 570 is 10 times less than 57

What is "thirty-seven thousandths" in decimal form?

• 0.037

• 3,700

• 0.37

• 37,000

An expression is shown below.

4/5 − 1/3

What is the value of the expression?

• 3/2

• 5/8

• 7/15

• 17/15

Select all the expressions that have a value of 1/2

• 2/4-1/3

• 1/3 + 4/6

• 1 - 7/14

• 6/8 -1/4

• 2/5 + 1/10