Question 1

Which of the following numbers is an irrational number?

Accepted Answer

$$\sqrt{2}$$

Question 2

What is the result of $$52 + 38$$?

Accepted Answer

$$90$$

Question 3

If you spend $$52 one day and 38 $$the next day (both as negative numbers), what is your financial position?

Accepted Answer

$$-90$$

Question 4

According to the addition rule for two numbers with the same sign, what is the sum of $$-8 + (-15)$$?

Accepted Answer

$$-23$$

Question 5

Which of the following best describes the sum of two positive numbers on a number line?

Accepted Answer

Move to the right

Question 6

What is the result of $$(-25) + 10$$?

Accepted Answer

$$-15$$

Question 7

If you gain $$7 and lose 15$$, what is your net amount?

Accepted Answer

$$-8$$

Question 8

What is the opposite of $$-9$$?

Accepted Answer

$$9$$

Question 9

Which of the following is the correct way to subtract $$24 - 32$$ using signed numbers?

Accepted Answer

$$24 + (-32)$$

Question 10

You are at a café and order two specials for $$4.95, two cups of coffee for 1.85$$, and tax is $0.34. What is your total bill?

Accepted Answer

$$7.14$$

Question 11

Victoria has $$739.52 in her savings account. If she deposits 214.86$$, how much does she have in savings?

Accepted Answer

$$954.38$$

Question 12

If you buy a drink for $$1.75 and a burrito for 4.20$$, what is the total bill?

Accepted Answer

$$5.95$$

Question 13

What is the result of $$10.00 - 5.95$$?

Accepted Answer

$$4.05$$

Question 14

What is the result of $$5 	imes (-90)$$?

Accepted Answer

$$-450$$

Question 15

What is the sign of the product when multiplying three negative numbers?

Accepted Answer

Negative

Question 16

What is the result of $$0.07 	imes 0.8$$?

Accepted Answer

$$0.056$$

Question 17

If $$6.93 \div 2.2 = 3.15$$, what is the dividend?

Accepted Answer

$$6.93$$

Question 18

Which of the following is a correct rule for multiplying or dividing two numbers with different signs?

Accepted Answer

The answer will be negative

Question 19

A student multiplies $$-8 	imes 9. $$What is the result?

Accepted Answer

$$-72$$

Question 20

Which of the following best describes the process for adding decimals?

Accepted Answer

Line up the decimal points and add each column

Guided Study Notes: Operations with Integers and Decimals

스터디 가이드 - 연습 문제