Mental Math

 $2^3$  

What is the greatest remainder you can have when you divide by 18?

What is the average of 8,9,10,11 and 12?

Subtract 0.49 from 0.5

The wall and floor in a classroom are ______ to another.

• Parallel

• Perpendicular

• Diagonal

Eight times a number is 112. What is half the number?

What is 3pm on a 24-hour clock?

Round off 39.8 to the nearest whole number.

 $7^3$  

 $\frac{1}{2}$  of a number is 35. What is  $\frac{1}{10}$  of the number?