Mental Math

Front

What is mental math?

Back

Mental math refers to performing calculations in your head without the use of calculators or paper.

Front

What is the value of 10³?

Back

10³ equals 1,000.

Front

Calculate 45 x 10³.

Back

45 x 10³ = 45,000.

Front

What is the product of 8 and 35?

Back

8 x 35 = 280.

Front

Calculate 7 x 3000.

Back

7 x 3000 = 21,000.

Front

What is the distributive property in math?

Back

The distributive property states that a(b + c) = ab + ac.

Front

Use the distributive property to solve (8 x 5) + (8 x 10).

Back

(8 x 5) + (8 x 10) = 8(5 + 10) = 8 x 15 = 120.

Front

Calculate 120 x 5,000.

Back

120 x 5,000 = 600,000.

Front

What is the sum of 45,000 and 21,000?

Back

45,000 + 21,000 = 66,000.

Front

What is the difference between 600,000 and 240,000?

Back

600,000 - 240,000 = 360,000.