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- Fourth Class Maths
- Multiplying and Dividing Numbers

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Get Started Now- Intro Lesson: a2:59
- Intro Lesson: b3:42
- Lesson: 1a0:50
- Lesson: 1b0:49
- Lesson: 1c0:57
- Lesson: 2a1:54
- Lesson: 2b2:48
- Lesson: 2c1:17
- Lesson: 3a1:34
- Lesson: 3b1:49
- Lesson: 3c1:58
- Lesson: 4a3:35
- Lesson: 4b2:14
- Lesson: 4c2:21

In this lesson, we will learn:

- Patterns in dividing by 10, 100 and 1000
- Patterns in dividing by multiples of 10

A multiple of 10 is any number that has 10 as a factor (Shortcut: a multiple of 10 is any number that ends in zero)

- To divide a whole number by 10, 100, 1000 (or their multiples)
- Divide the nonzero digits
- Count the number of zeroes in the divisor
- Erase the same amount of zeroes from the dividend to get the quotient
- Ex. 2100 ÷ 70 = 30 (One zero in 10, get rid of one zero from the 2100 so there is one zero in the quotient)

Ex. 800 ÷ 10 = 80 (One zero in 10, get rid of one zero from the 800)

- IntroductionIntroduction to Dividing by Multiples of 10a)Dividing by 10, 100 and 1000b)Dividing by Multiples of 10
- 1.
**Dividing by 10, 100 and 1000**a)800 ÷ 10b)7800 ÷ 100c)350,000 ÷ 1000 - 2.
**Dividing Multiples of 10**

Dividea)180 ÷ 6b)400 ÷ 5c)7200 ÷ 8 - 3.
**Dividing by Multiples of 10**

Dividea)1200 ÷ 30 =b)28,000 ÷ 7000 =c)300,000 ÷ 600 - 4.
**Use the Pattern of Multiplying by 10, 100, 1000 to find the missing number**

Find the missing numbersa)6000 ÷ ________ = 30b)72,000 ÷ _________ = 900c)20,000 ÷ __________ = 40

4.

Multiplying and Dividing Numbers

4.1

Arrays and factors

4.2

Multiplying by 10, 100, 1000

4.3

Multiplication strategies

4.4

Multiplying multi-digit numbers

4.5

Dividing multiples of 10

4.6

Dividing using place value

4.7

Dividing using area models

4.8

Dividing multi-digit numbers

4.9

Products and quotients: Word problems

4.10

Applications of the four operations