Basic Knowledge

When an equation has one variable, and the variable is negative, what is the first thing you should do?

What operation do you use to get rid of parentheses?

When you shoot a negative in an inequality, what do you do with the inequality sign?

What is the first thing you should do in this equation:

A farmer had 2 stacks of hay in one field. In a second field, he had 3 times as many haystacks as he had in the first field. In the third field, he had 5 more stacks than in the first field. The farmer put all of his haystacks together in one field. How many stacks of hay does he now have?

If it takes 5 minutes to boil an egg, how long does it take to boil 4 eggs?

A boy was rushed to the emergency room. The doctor said, "I can't operate on him, he is my son". The doctor was NOT the boy's father. How can this be?

Which answer shows the correct steps for the "Order of Operations"?

What is the difference between and equation and an expression?

Check every box that has a word that means to add.