Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

What does this mathematical rebus means ?

I am an odd number. Take away a letter and I become even. What number am I?

Solve below popular number sequence
314 159 265 358 979 323 846 ?