How to Divide Integers Part 2

This is the second video (see first video) in our series on division of integers. In this video, we will learn division by solving more examples. Watch the Taglish math tutorial video above and then answer the Practice Exercises below.

Practice Exercises

1.) – 105 ÷  (-5)

2.) 34 ÷ (-17)

3.) – 45 ÷  5

4.)- 18 ÷  -3

5.)  -72 ÷ 9

Answers to Exercises

1.) 21

2.) -2

3.) -9

4.) 6

5.) -8

How to Divide Integers Part 1

This is the first video in our series on Division of Integers. In this video, we discuss the rules on dividing integers as well as give some examples. Watch the Taglish math tutorial video above and then answer the Practice Exercises below.

Practice Exercises

1.) – 14 ÷  2

2.) 16 ÷ (-8)

3.) – 42 ÷ (- 7)

4.)  – 88 ÷ 8

5.)  72 ÷ 8

Answers to Exercises

1.) -7

2.) -2

3.) 6

4.) -11

5.) 9

How to Multiply Integers Part 3

This is the third and the last part of our series on Multiplication of Integers (see first and second parts). In this video, we discuss more examples on how to multiply integers.

Watch the Taglish math tutorial video above and then answer the Practice Exercises below.

Practice Exercises:

1.) – 4 × 3  × (- 2) × 1

2.) (- 4) (- 1)(-8)

3.) (-1)(9)(-3) (-1)

4.)(-2)(-3)(1) (-5)(-1)

5.)(-7)(2)(1) (-2)(6)

Answers to Exercises

1.) 24

2.) -32

3.) -27

4.) 30

5.) 168

How to Multiply Integers Part 2

After learning the basics of multiplication of integers, we continue learning by discussing more examples in this video.  Here, we apply the rules we have learned in the previous tutorial in multiplying more than two integers.

Watch the Taglish math tutorial video above and then answer the Practice Exercises below.

Practice Exercises: Convert the following subtraction expressions to an addition expression and then find the answer.

1.) – 3 × 4

2.) (- 7) (- 2)(-3)

3.) (1)(12)(-1)

4.) (- 3) × 3 × (-3)

5.) (- 4) × 2 × (-6) × 2

Answers to Exercises

1.) -12

2.) -42

3.) -12

4.) 27

5.) 96

How to Multiply Integers Part 1

In this video, we learn how to multiply positive and negative integers. We will also discuss the rules in multiplication of integers. Note that aside from the  × sign, parentheses are also used in multiplication. For example, – 6 × 3 can also be written as (-6)(3).

Watch the video above and then answer the Practice Exercises below.

Practice Exercises: Convert the following subtraction expressions to an addition expression and then find the answer.

1.) – 8 × 4

2.) – 5 × – 4

3.) (7)(-12)

4.) 9  ×  10

5.) – 12 × 0

Answers to Exercises

1.) -32

2.) 20

3.) -84

4.) 90

5.) 0

How to Subtract Integers Part 3

In this video, we summarize what we have learned in the first part and second part of this tutorial series on subtraction of integers. The main point of the discussion in the video is that any subtraction expression can be converted into an addition expression.

Watch the video above and then answer the Practice Exercises below.

Practice Exercises: Convert the following subtraction expressions to an addition expression and then find the answer.

1.) – 12 – 11

2.) 8 – 12

3.) 5 – (- 7)

4.)- 13 – (- 4)

5.) 0 – 21

Answers to Exercises

 

1.) – 12 – 11 = – 12 +  (-11) = -23

2.) 8 – 12 = 8 + (-12) = -4

3.) 5 – (- 7) = 5 + 7 = 12

4.)- 13 – (- 4) = – 13 + 4 = -9

5.) 0 – 21 = 0 + (-21) = -21

 

How to Subtract Integers Part 2

In this video, we continue learning about subtraction of integers. We are going to use the rules that we have learned in the previous video to answer more exercises.

Watch the video above and then answer the Practice Exercises below.

Practice Exercises

1.) 6 – 10

2.) – 17 – 7

3.) 0 – (- 12)

4.) – 4 – (- 15)

5.) 0 – 21  Continue reading

How to Subtract Integers Part 1

In this video, we are going to learn how to subtract integers. In doing this, we are going to use what we have learned in adding integers and convert subtraction sentences to addition sentences.

Watch the video above and then answer the Practice Exercises below.

Practice Exercises

1.) 4 – 8

2.) – 12 – 6

3.) 7 – (-9)

4.) – 3 – (- 12)

5.) 0 – 17  Continue reading

How to Add Integers Part 3

In Part 1 and Part 2 of this series, we learned how to use the number line and positive and negative chips to add integers. In this video, we will learn how to add integers where the given has more than two addends. Watch the video above and then answer the Practice Exercises.

Practice Exercises

1.) 8 + 2 + (-22)

2.) 15 + (-4) + (-3)

3.) – 14 + (- 5) + (-3)

4.) 12 + (-3) + (-9)

5.) -11 + 2 + (-6)

Answers to Exercises  Continue reading

How to Add Integers Part 2

In the previous video, we learned how to use the number line and positive and negative chips to add integers. In this video, we continue our discussion. We will have more worked examples on adding integers. Watch the video above and answer the practice exercises.

Practice Exercises

1.) 25 + (-10)

2.) – 60 + (-4)

3.) – 34 + 15

4.) 37 + 9

5.) – 45 + 0  Continue reading

How to Add Integers Part 1

In this video, we are going to use the number line to illustrate addition of integers. We are also going to represent the integers are positive and negative chips to illustrate addition.

Watch the video above and answer the Practice Exercises.

Practice Exercises

1.) 12 + (-5)

2.) -9 + (-4)

3.) -15 + 8

4.) 11 + 8

5.) 0 + (- 3)

6.) 6 + (-6)

Answers to Practice Exercises  Continue reading

How to Divide Numbers with Decimals

After learning addition, subtraction, and multiplication of numbers with decimals, let us now learn how to divide numbers with decimals. The easy method of doing this is by multiplying both the dividend and divisors of the decimals being divided to eliminate the decimal point. Watch the Tagalog video above to learn this method and then answer the exercises below.

Practice Exercises

1.) 2.8 ÷ 0.2

2.) 12 ÷ 0.5

3.) 0.065 ÷ 0.13

4.) 8.04 ÷ 3

5.) 1.26 ÷ 0.3

Answers to Practice Exercises  Continue reading

How to Multiply Numbers with Decimals

After learning how to add and subtract numbers with decimals, let us now learn how to multiply numbers with decimals. To know how to multiply numbers with decimals, watch the video above and then answer the exercises below.

Practice Exercises

1.) 2 × 2.5

2.) 3.1 × 1.2

3.) 4.52 × 10

4.) 5.21 × 0.01

4.) 8.21 × 3.26  Continue reading

How to Subtract Numbers with Decimals

After learning how to add numbers with decimals, let us now learn how to subtract numbers with decimals. In subtracting numbers with decimals, the method is just to align the decimal points of the two numbers and then subtract them. Watch the video above to learn more and then answer the exercises below.

Practice Exercise

1.) 2.3 – 1.8

2.) 3.05 – 2.12

3.) 4.062 – 3.02

4.) 12.01 – 6.025

5.) 6.513 – 2.61  Continue reading

How to Add Numbers with Decimals

In this video, we are going to learn how to add decimals. To add decimals, arrange the numbers vertically and align their decimal points. Watch the video above and answer the exercises below.

Practice Exercises

1.) 1.5 + 0.01

2.) 3.05 + 2.6 + 4.008

3.) 4.58 + 1.15 + 2.008

4.) 12.006 + 3.5 + 18.21

5.) 6.5 + 2.86 + 2.1 + 5  Continue reading

Division of Fractions

After learning multiplication of fractions, we now learn division of fractions. This series is composed only of two videos. The first video involves division of fractions improper fractions and the second video on mixed fractions. To divide fractions, you just have to get the reciprocal of the divisor and then multiply it by the dividend. The result is the answer of the division.

DF1 Division of Fractions (Proper and Improper)

This video is a tutorial on how to divide proper and improper fractions.

DF2 Division of Fractions (Mixed Fractions)

This video is a tutorial on how to divide mixed fractions by proper fractions, division of mixed fractions by mixed fractions, as well as division of mixed fractions by whole numbers.

In the next series, we will be learning about operations on decimals.