Explore BrainMass

I need help understanding the following math problems

I need help in understanding the attached math problems.


Solution Preview

For the first question, you need to identify the digit for each place value. 350,359 (note that fifty thousand indicates 0 one thousands).

For the second question, look at the location of the numerals and the parentheses. This indicates an associative property, you still have the same answer, but different digits are associated together.

For the third, you will need to perform the subtraction and then add the difference with the bottom number to gain the top number. 1957. 1957 + 2736 = 4,693

For the fourth, you want to round the digits to the nearest ten before performing the operation. To round a number, if it is between 0 and 4.9 you round down, if it is between 5 and 9.9 you round up. 100 - 30 = 70.

For the fifth, you would first multiply the top number by the digit in the ones place on the lower numeral. Then you would do the multiplication with the second, remembering that you are multiplying by that digit in the tens ...