Math Properties and Equations

What number fills in the blank?
5 + (7 + 6) = (5 + ___) + 6

• 8

• 6

• 5

• 7

Which of these illustrates the associative property of multiplication?

• 4 x (5 x 6) = (4 x 5) x 6

• 6 (9 + 1) = (6 x 9) + (6 x 1)

• 4 x (56) = (45) x 6

• 5 + 0 = 0 + 5

The commutative property of multiplication states that the order of the numbers in an equation:

• Should go from least to greatest

• Doesn't change the product

• Should go from greatest to least

• Is always important

Solve:
3x + 7 = -8

• 5

• -5

• -12

• -18

Match the expression to the property listed that is being shown.  You may use them more than once.(Type your 5 letters lower case and with no spaces in between like: abcab)

Simplify the expression:
5(n + 3) + 4n

• 23n

• 5n + 15 + 20n

• 3n + 20n

• 9n +15

Equations must have an

• ≠

• =

• ≤

• ≥

Match the expression to the property listed that is being shown.  You may use them more than once. (Type your 5 letters lower case and with no spaces in between like: abcab)

Simplify the expression: 
3(1 - 2x) + 7

• 21 - 6x

• 24 + 6x

• 10 + 6x

• 10 - 6x

Simplify  
 5(2 - 7n)

• 52 - 7n

• 10 - 7n

• 10 - 35n

• 10 + 35n