Math Facts EMA 2

Front

What is standard form in mathematics?

Back

Standard form is a way of writing numbers using digits, where the number is expressed as a decimal number between 1 and 10 multiplied by a power of 10.

Tags

CCSS.8.EE.A.3

Front

How do you divide decimals?

Back

To divide decimals, you can convert the divisor to a whole number by moving the decimal point to the right, and then move the decimal point in the dividend the same number of places. Then perform the division as you would with whole numbers.

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

Front

What is the result of 24 hundredths divided by 6?

Back

0.04

Tags

CCSS.5.NBT.B.7

Front

What is the result of 12 tenths divided by 3?

Back

0.4

Tags

CCSS.6.NS.B.3

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a rectangle has an area of 238 ft² and a length of 14 ft, how do you find the width?

Back

Width = Area ÷ Length, so Width = 238 ft² ÷ 14 ft = 17 ft.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula for finding the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Tags

CCSS.3.MD.D.8

Front

Estimate the result of 61 ÷ 17. What is the approximate answer?

Back

3.

Front

What is the importance of estimating in mathematics?

Back

Estimating helps to quickly assess the reasonableness of an answer and can simplify calculations.