Math 7 - Recap

Which of the following is perfect square number?

• 9

• 20

• 14

• 45

• 9

• 19

• 27

• 19

Which of the following is not a rational number?

• 4

• -9

Write 330 000 in scientific notation.

• 0.025

• 0.0025

• 2500

• 250

5 liter = _______ fl. oz.

• 1.6907

• 16.907

• 169.07

• 1690.7

Convert 2300 dag to kg.

• 23

• 230

• 23000

• 230000

It is a group of terms separated by + or – signs.

• Algebraic expression

• Constant

• Term

• Variables

Translate the given expression: 2x + 3

• The sum of twice a number and three.

• Twice a number and sum of three.

• The sum of three and twice a number.

• Twice a number more than 3.

Evaluate the expression: 2a + 3b - c, if a = 7, b = 5 and c = -1

• -30

• 30

• -29

• 29