Chapter 1 matsh

What are the addition rules for integers with the same signs?

Add the numbers and keep the sign.

What happens when adding integers with different signs?

Subtract the smaller number from the bigger one and take the sign of the bigger number.

What is the result of -6 + 10?

4

What is the result of 8 + (-12)?

-4

What does subtracting a negative number equal?

Adding the positive equivalent.

What is the result of -2 - (-5)?

3

How do you multiply integers with the same signs?

The result is positive.

What is the result of -4 × -2?

+8

How do you divide integers with different signs?

The result is negative.

What is the cube root of 27?

3

What is the square root of 64?

8

What do you do when rounding a number that is 5 or more?

Round up.

What is the nearest whole number for $ext{√111}≈10.53$?

11

What is the value of a^0?

1 (as long as a ≠ 0).

What is the result of $2^3$?

8.

What does $3^{-2}$ equal?

1/9.

What is the result of $a^m × a^n$ according to index laws?

$a^{m+n}$.

What is the result of $a^m ÷ a^n$ according to index laws?

$a^{m−n}$.

How do you express $a^{-n}$?

1 / $a^n$.

What is the result of $5^4 ÷ 5^2$?

$25$.

What is the result of $(3^2)^3$?

$729$.