4. Expressions

Match the equivalent expressions.

• 5(y - 3)

• 75y + 15

• 2(y + 4)

• 8 + y + y + y + 9

• 3y + 17

• 5y - 15

• 15(5y + 1)

• y + 6 + y + 2

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Write in exponential form:

7 x 7 x 7 x 7 x 7

Mathematical Equivalence

ON

Match the following

• 5x

• the difference of x and 5

• x - 5

• two less than a number

• x - 2

• the product of a number and 5

• 5 + x

• the sum of 5 and a number

• 2x + 5

• five more than twice x

4 + 9 + 8 ÷ 4

• 5.25
• 5
• 25
• 15

Which operation would you do first in the following equation?
10 - 4 ÷ 1 · 5

• Subtraction
• Division
• Multiplication
• Addition 

• Subtract, Divide, Exponent

• Exponent, Subtract, Divide

• Exponent, Divide, Subtract

• 93

• 150

• 25

• 125