1. M Write down all factors of 20 Write down the first 5 multiples of 6
MIXED STARTER
Write down all factors of 20
Write down the first 5 multiples of 6
Write down the factors of 30 which are prime
Which of the values below are not multiples of 6?
I am thinking of a prime number. 35 and 14 are both multiples of my number. What is my number?
A lesson to reinforce multiplication and introduce decimal multiplication
How many factors of 90 are multiples of 6?
What is the smallest number that has 4 different prime factors?
LO: To perform decimal multiplications

2. Multiplying Decimals 06/04/2019
Core: will be able to use basic written methods to multiply numbers and decimals by the powers of 10.
Challenge: will be able to multiply decimals.
Aspire: to solve wordy problems using written methods
Vivo Star: Display a high level conceptual understanding of place value
Keywords: base, place value, units and powers of 10
A lesson to reinforce multiplication and introduce decimal multiplication
LO: To perform decimal multiplications

3. Long Multiplication A 284×32= 375×65= 11 1 2 = x 100 x 10 x 1 X 0.1H S
ACQUIRE FLUENCY
Use any preferred method (but preferably long multiplication!) to multiply the following numbers.
284×32= 375×65= =
Complete the table below
A lesson to reinforce multiplication and introduce decimal multiplication
x 100
x 10
x 1
X 0.1
x 0.2 2
5.2
3.23
LO: To perform decimal multiplications

4. Long Multiplication A 284×32=𝟗𝟎𝟖𝟖 375×65=𝟐𝟒𝟑𝟕𝟓 11 1 2 =𝟏𝟐𝟑𝟐𝟏 x 100H S
ACQUIRE FLUENCY
Use any preferred method (but preferably long multiplication!) to multiply the following numbers.
284×32=𝟗𝟎𝟖𝟖 375×65=𝟐𝟒𝟑𝟕𝟓 =𝟏𝟐𝟑𝟐𝟏
Complete the table below
A lesson to reinforce multiplication and introduce decimal multiplication
x 100
x 10
x 1
X 0.1
x 0.2 2
200 20
0.2
0.4
5.2
520 52
0.52
1.04
3.23
323
32.3
0.323
0.646
LO: To perform decimal multiplications

5. 3.2×0.04 32×4=128 3.2×0.04=0.128 Multiplying Decimals TH S
TALK ABOUT IT
3.2×0.04
32×4=128
First ignore decimal points and multiply as whole numbers.
3.2×0.04=0.128
A lesson to reinforce multiplication and introduce decimal multiplication
Correct by counting total number of decimal place jumps.
LO: To perform decimal multiplications

6. 84.1×0.05 841×5=4205 84.1×0.05=4.205 Further Example TS
TALK ABOUT IT
84.1×0.05
841×5= ×0.05=4.205
A lesson to reinforce multiplication and introduce decimal multiplication
LO: To perform decimal multiplications

7. Practice makes perfect  H
HAVE A GO
(1)
15 x 15
(2)
25 x 25
(3)
35 x 35
(4)
45 x 45
(5)
75 x 3 x 25
(6)
1.5 x 1.5
(7)
2.5 x 2.5
(8)
0.35 x 0.35
(9)
4.5 x 0.45
(10)
7.5 x 0.3 x 0.25
A lesson to reinforce multiplication and introduce decimal multiplication
If school lunches cost £4.50 a day how much does it cost for 5 days of meals?
I earn £6.25 an hour for a part time job how much do I earn in 5 days if I work 8 hours a day
Each bag of sweets weighs 2.8kg and I have three and a half bags. What is the total weight?
My garden is 8.12m long and 6.15m wide. What is the Area of my garden?
LO: To perform decimal multiplications

8. Practice makes perfect  H
HAVE A GO
(1)
225
(2)
625
(3)
1225
(4)
2025
(5)
5625
(6)
2.25
(7)
6.25
(8)
0.1225
(9)
2.025
(10)
0.5625
A lesson to reinforce multiplication and introduce decimal multiplication
If school lunches cost £4.50 a day how much does it cost for 5 days of meals? £22.50
I earn £6.25 an hour for a part time job how much do I earn in 5 days if I work 8 hours a day £250
Each bag of sweets weighs 2.8kg and I have three and a half bags. What is the total weight? 9.8kg
My garden is 8.12m long and 6.15m wide. What is the Area of my garden? metres squared
LO: To perform decimal multiplications

9. Connect 3 S 17.4 x 0.1 (1) 1.74 = (8) 17.4 = (2) 0.74 = (9) 0.074 =M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
17.4 x
0.1
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
LO: To perform decimal multiplications

10. Connect 3 S 0.07 x 0.1 (1) 1.74 = (8) 17.4 = (2) 0.74 = (9) 0.074 =M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
0.07 x
0.1
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
LO: To perform decimal multiplications

11. Connect 3 S 0.7 x 0.1 (1) 1.74 = (8) 17.4 = (2) 0.74 = (9) 0.074 = (3)M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
0.7 x
0.1
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
LO: To perform decimal multiplications

12. Connect 3 S 47.1 x 0.01 (1) 1.74 = (8) 17.4 = (2) 0.74 = (9) 0.074 =M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
47.1 x
0.01
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
LO: To perform decimal multiplications

13. A lesson to reinforce basic place value
Connect 3 M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
7.4 x
0.1
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
A lesson to reinforce basic place value
LO: To multiply and divide by the powers of 10
LO: To perform decimal multiplications

14. A lesson to reinforce basic place value
Connect 3 M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
174 x
0.1
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
A lesson to reinforce basic place value
LO: To multiply and divide by the powers of 10
LO: To perform decimal multiplications

15. A lesson to reinforce basic place value
Connect 3 M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
71.4 x
0.01
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
A lesson to reinforce basic place value
LO: To multiply and divide by the powers of 10
LO: To perform decimal multiplications

16. A lesson to reinforce basic place value
Connect 3 M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins 74 x
0.1
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
A lesson to reinforce basic place value
LO: To multiply and divide by the powers of 10
LO: To perform decimal multiplications

17. A lesson to reinforce basic place value
Connect 3 M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins 7 x
0.1
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
A lesson to reinforce basic place value
LO: To multiply and divide by the powers of 10
LO: To perform decimal multiplications

18. A lesson to reinforce basic place value
Connect 3 M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
7.4 x
0.01
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
A lesson to reinforce basic place value
LO: To multiply and divide by the powers of 10
LO: To perform decimal multiplications

19. A lesson to reinforce basic place value
Connect 3 M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
74.1 x
0.1
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
A lesson to reinforce basic place value
LO: To multiply and divide by the powers of 10
LO: To perform decimal multiplications

20. A lesson to reinforce basic place value
Connect 3 M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
71.4 x
0.1
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
A lesson to reinforce basic place value
LO: To multiply and divide by the powers of 10
LO: To perform decimal multiplications

21. A lesson to reinforce basic place value
Connect 3 M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
471 x
0.01
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
A lesson to reinforce basic place value
LO: To multiply and divide by the powers of 10
LO: To perform decimal multiplications

22. A lesson to reinforce basic place value
Connect 3 M A T H S
SUM IT UP
Which is the correct answer. Find the correct answer to the question below in the table. The first team to get 3 right in a row wins
17.4 x
0.01
(1)
1.74 =
(8)
17.4 =
(2)
0.74 =
(9)
0.074 =
(3)
4.71 =
(10)
0.07 =
(4)
0.007 =
(11)
7.41 =
(5)
7.4 =
(12)
7.14 =
(6)
0.714 =
(13)
0.7 =
(7)
0.471 =
(14)
0.174 =
A lesson to reinforce multiplication and introduce decimal multiplication
A lesson to reinforce basic place value
LO: To multiply and divide by the powers of 10
LO: To perform decimal multiplications