# Lesson Category: Year 5

## Lesson 19- Problems Involving Decimals

Objective At the end of this lesson, students should be able to understand and solve word problems involving decimals. Decimal word problems are just like any other word problems except that they involve decimal numbers and not whole numbers.   Example 1 Three cylinders weigh 52.4kg, 48.06kg and 63.587kg. What is the total weight of …

## Lesson 18- Dividing A Decimal By A Decimal

Objectives At the end of this lesson, students should be able to divide a decimal number by another decimal. Consider the number line below. How many times is 0.4 contained in 1-2? We can see that 0.4 is contained in 1.2 three (3) times. The division methods can also be used to solve this question …

## Lesson 17- Dividing Decimals By Whole Numbers

Objective At the end of this lesson, students should be able to divide decimals by whole numbers. When dividing a decimal by a whole number, the normal method is used; however, the decimal point in the quotient is kept directly above the decimal point in the dividend.     Unit 10 Lesson 17: Exercise 1 …

## Lesson 16- Multiplying Decimals By Decimals

Objective At the end of this lesson, students should be able to multiply decimals by other decimals. When multiplying decimals by other decimals; any of these two methods may be used.     Unit 10 Lesson 16: Exercise 1 Use the second method to solve the following. Answers a. 0.06   b. 0.28   c. 0.36   d. 0.09   e. 0.24 f. …

## Lesson 15- Multiplying Decimals By Multiples of 10 Or 100

Objective At the end of this lesson, students should be able to multiply decimals by multiples of 10 or 100. Decimals can easily be multiplied by multiples of 10 or 100. Example 1 a) 1.52 x 20     b.  4.671 x 50 Solution     Example 2 a) 3.64 x 400     b.  7.805 x 800 Solution     …

## Lesson 14- Multiplying Decimals By Whole Numbers

Objectives: At the end of this lesson, students should be able to multiply decimals by whole numbers. Multiplying means continues addition. It implies adding a particular number to itself a number of times. The same rule applies when multiplying decimals by whole numbers. Consider the number line below. The number line shows four (4) jumps …

## Lesson 13- Dividing Decimals By 10, 100 Or 1000 Objective

At the end of this lesson, students should be able to divide decimals by 10, 100 or 1000.   Remember from the previous lesson that, when you multiply a decimal number by: 10, each digit of the decimal moves one place to the left. 100, each digit moves 2 places to the left. 1000, each …

## Lesson 12- Multiplying Decimals By 10, 100 Or 1000

Objective At the end of this lesson, students should be able to multiply decimal numbers by 10, 100 or 1000. Decimals can easily be multiplied by 10, 100 and 1000. Anytime a decimal is multiplied by 10, each digit of the decimal moves 1 place to the left.     Example 1 a) 1.24 x …

## Lesson 11- Estimation Of Decimals

Objective At the end of this lesson, students should be able to estimate the answers to questions involving addition and subtraction of decimals. An estimate is a rough guess. In this lesson, we will learn how to estimate decimals in addition and subtraction questions. To estimate a decimal, you may quickly round it to the …

## Lesson 8 – Decimal Number Lines And Sequences

Objectives: At the end of the lesson, students should be able to: a) Know the set of decimal numbers that exist between any two consecutive whole numbers. b) Know the set of decimal numbers that exist between any two consecutive decimal numbers. c) Read and write decimals on a line. d) Fill in the gaps …

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