Rounding
Area & Perimeter
Mental Math
Vocabulary
Measurement Conversions
100

Round the following number to the nearest hundred: 4,332

4,300

100

Find the area of a rectangle whose length is 5 meters and width is 9 meters.

45 meters2

100

212 x 4

448

100

The answer when two numbers are multiplied.

The product

100

How many milimeters are in a meter.

1,000

200

Round the following number to the nearest ten thousand: 15,555

20,000

200

Find the perimeter of a rectangle whose sides have a length of 10 meters and a width of 12 meters.

44 meters

200

862 divided by 2

431

200

An operation that is used to separate the number into equal sized groups.

Division

200

How many grams are in a kilogram.

1,000 grams

300

Round the following number to the nearest thousand:

452,399

452,000

300

Find the length of a rectangle that has a width of 7 meters and an area of 42 meters2.

6 meters

300

2500 / 5

500

300

The number by which another number is divided.

Divisor

300

How many liters of water you have if you have 5000 milliliters

5 liters

400

Round this number to the nearest hundred thousand: 85,000

100,000

400

Find the width of a rectangle that has a length of 7 meters and a perimeter of 24 meters.

5 meters

400

325 x 3 

975

400
An example of inverse operations.

Multiplication & Division OR Addition & Subtraction

400

5,000 kilograms to grams

5,000,000 grams

500
Round this number to the nearest million: 499,999

0

500

A rectangle is three times as wide as it is long. The length is 10 meters. Find the area of the rectangle.

300 meters2

500

6300 / 9

700

500

An arrangement of equal groups in rows and columns that can help you solve a multiplication problem

An ARRAY

500

How many kilometers is 10,000,000 milimeters.

10 kilometers