Number sets and properties

Question 1 of 10

The property shown by a + b = b + a is the

Question 2 of 10

If p * q = p² − q, find (2 * 3) * 4.

Question 3 of 10

If a ∆ b = (a + b)/ab, find 2 ∆ 3.

Question 4 of 10

Which property does the operation a ⊕ b = a + b + 1 satisfy?

Question 5 of 10

Which set contains the whole numbers but not the negative integers?

Question 6 of 10

The multiplicative inverse of 2/5 is

Question 7 of 10

The recurring decimal 0.333… is best described as

Question 8 of 10

The statement (4 + 9) + 6 = 4 + (9 + 6) shows the

Question 9 of 10

Which of these numbers is irrational?

Question 10 of 10

3(x + 4) = 3x + 12 illustrates the