Make a ten or a hundred to add mentally.

198 + 132

1,274 + 3,599

The sum of a number and twice the number is 24 what is the number?

An estimated three out of every 25 men are left-handed what percent of the men are left-handed?

What is the difference of the fractions. 3 13/15 - 1 4/5=

A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 49.049.0 and 59.059.0 minutes. find the probability that a given class period runs between 50.2550.25 and 50.7550.75 minutes.

What is 7/15 as a decimal

What are the real and imaginary parts of the complex number? 2-5i The real part:? The imaginary part:?

If one card is drawn from a deck what is the probability of getting a red card

Latasha made 128 ounces of punch. How many cups of punch did Latasha make?

What is 4 6/8+11 1/3

The coefficient of the product of (-5xy2) and (-4x2y) is