Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal representation of 5/10.

Front

How do you multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both numbers and place the decimal point in the product accordingly.

Front

What happens to the decimal point when you multiply by 10?

Back

When you multiply a decimal by 10, you move the decimal point one place to the right.

Front

What is the result of 0.73 × 2.52?

Back

1.8386 (You would move the decimal point 4 places to the left in the final answer).

Front

How do you convert kilometers to miles?

Back

To convert kilometers to miles, multiply the number of kilometers by 0.62.

Front

What is 12 kilometers in miles?

Back

12 kilometers is approximately 7.44 miles (12 × 0.62 = 7.44).

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

What is the result of (5.9 − 5.3) × 7.2 + 1.4²?

Back

The result is 6.28.

Front

How do you find the total distance jogged if you jog a certain distance each day?

Back

Multiply the distance jogged each day by the number of days jogged.

Front

If Sarah jogged 4.8 miles each day for 22 days, how many miles did she jog in total?

Back

Sarah jogged a total of 105.6 miles (4.8 × 22 = 105.6).