3rd Grade Math Review

Multiplication and Factors

100

List two factors that can be multiplied to equal 21

 7 x 3, 21 x 1

200

4 x 5 = 20. Multiply two different sets of factors to get the product of 20.

What are 10 and 2 or what are 20 and 1?

300

Gina earns $3 for making dinner and $5 for changing sheets on her bed. How much will she earn in one week if she makes dinner 3 times and changes the sheets 1 time?

What is $14.

400

List every factor for 40

1, 2, 4, 5, 8, 10, 20, 40

500

List all common multiples of 18 and 42

1, 2, 6

Place Value

100

Write a number with a 9 in the tens spot

Answers will vary.

200

What place value is 6 in in 765,200

ten thousands

300

What is the value of 7 in 37,825,138?

7,000,000 or 7 million

400

What place values are the number 6 in in 639,611 

(There are two.)

Hundred thousands, hundreds

500

Solve: 600,100 + 80,008 + 410 + 81 + 5

What number is in the thousands spot?

680,604

0 or zero

Perimeter

100

How do you find the perimeter of a shape?

Add up total length of every side.

200

What is the perimeter of a shape with two sides that are 6 inches long, and two sides that are 5 inches long?

22 inches

300

What is the perimeter of a rectangle with a length of 10 inches and a width of 40 inches?

100 inches

400

What is the perimeter of a shape with 6 equal sides each measuring at 4 inches long?

What is 24 inches?

500

A pentagon has different length sides measuring 3 ft, 7 ft, 8 ft, 5 ft, and 10 ft. What is the perimeter of this pentagon?

What is 33 ft?

Time

100

What time would a digital clock read for quarter to 5?

What is 4:45?

200

It was 3:00 P.M. Sandra had been waiting at the bus station for 45 minutes. What time did she arrive at the station?

What is 2:15 P.M.?

300

Jen was playing a soccer game. The game started at 11:10 A.M. and ended at 12:40 P.M. How long did the game last?

What is 1 hour and 30 minutes?

400

Brad is going on vacation for 2 weeks and 4 days. How long will Brad be on vacation for?

What is 18 days?

500

Dan and his mom are going to a baseball game that starts at 7:05 P.M. Batting practice starts 90 minutes before the game starts. It takes 45 minutes for them to get to the field. What time do Dan and his mom need to leave to see the start of batting practice?

What is 4:50?

Area

100

What is the formula to find the area of a rectangle?

What is length x width?

200

What is the area of a rectangle with a length of 5 inches an a width of 7 inches?

35 inches

300

Which has a bigger area...a rectangle that has a length of 6 and a width of 4 or a rectangle that has a length of 5 and a width of 3?

What is a rectangle that has a length of 6 and a width of 4?

400

What is the area of a square with 4 equal sides measuring 9 centimeters?

What is 81 centimeters squared?

500

Which shape has an area of 120 centimeters?

A) A rectangle that is 15 inches long and 8 inches wide

B) A rectangle that is 13 inches wide and 9 inches long

A)