Mental math- Grade 7

Front

What is mental math?

Back

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

Front

How do you divide a number by another number?

Back

To divide a number by another, you determine how many times the divisor fits into the dividend.

Front

What is the formula for finding the greatest common factor (GCF)?

Back

The GCF of two numbers is the largest number that divides both of them without leaving a remainder.

Front

What is the product of 30 and 40?

Back

1,200

Front

If Amy bakes 240 cookies and puts 6 in each box, how many boxes does she use?

Back

40

Front

What is the result of -9 - 8?

Back

-17

Front

Back

8

Front

Back

800

Front

What is the greatest factor of 28 and 49?

Back

7

Front

What is the result of 30 x 40?

Back

1,200